As you read this week’s Progress Update below you will understand what I am referencing in this week’s title as to how we solved the most recent challenge in the building of XPM78-01 Möbius by going under rather than over the problem. Unfortunately on Friday (did it matter that it was the 13th?) we were hit by a much different and much more challenging problem which there is just no getting over, around or under, when several workers at Naval Yachts tested positive and there was no choice but to shut the whole company for the next 17 days and do all the contact tracing and testing of all those employees who have been in direct contact. If all goes well Naval, and certainly Christine and I, hope to reopen on November 30th. I’m sure you join us in wishing everyone involved the very best wishes and that there are no serious health consequences for any of us here.
To be clear and not cause any undue concern on your part, as good fortune would have it, neither Christine or myself have had any direct contact with any of these workers for the past two weeks. Furthermore, we have always been very self disciplined with our precautions of wearing masks any time there is any possibility of being in a place with others or where others have been recently such as the elevators in our apartment. We are both quite naturally introverts and previous single handed sailors so it has been relatively easy for us to keep to ourselves and staying as much as possible. And we are both quite fit and healthy, especially for two sixty somethings so I am pleased to let you know that we both feel very fit, healthy and happy and are doing everything we can to stay that way.
This may be as my kids used to say “TMI Dad!!”, as in Too Much Information to share, but the value of these kinds of blogs come in large part through their openness, transparency and honesty so I felt the need to share this brief insight into what is going on here and why there will not be much progress to report on for the remainder of this month of November. Hopefully all will go well and Naval will reopen on Nov. 30th with all of us healthy so we can hit the ground running and get Möbius finished and launched ASAP.
Now back to our regular programming as I think they used to say on radio and TV, as I do have several fun and exciting things to update you on from aboard the good ship Möbius for the week that was November10th through 13th.
I think it is quite true that laughter is the best medicine so let me start by sharing this fun cartoon, courtesy of the appropriately named Bizarrow Comics who focuses on such topics as Pirates, Cowboys, Snowmen, Doctors, well you get the idea.
This was one of their Daily Comics this past week and it must have been making the rounds on the internet as several of you sent this to us right about the same time Christine and I were both seeing it. Thanks Matt et al!
How appropriate and fun for us right?
Getting Under Mr. Gee
Let’s move on to the reference in this week’s title to a problem that we were able to solve by going under rather than over it. To put it in context, this was part of Hussein and I working on the alignment of the whole “propulsion” unit formed by Mr. Gee being bolted to the Nogva CPP Servo Gearbox which in turn is bolted to the big 65mm / 2.6” SS prop shaft which has the big bronze 1 meter / 39.4” four bladed CPP prop on its far end.
That is a long description that is hard to track and I have received quite a few questions and comments about both the Nogva CPP (Controllable Pitch Propeller) and this whole alignment process so for those interested, let me break it down and provide more details.
Here is my very rough sketch from over a year ago when we were figuring out the exact dimensions for installing the aluminium Nogva Prop Log which is the “pipe” you see over on the far Left here. I’m hoping that this will give you the big picture view that helps to show how this Propulsion System is one solid mass from the front of the Gardner in Blue on the far Right, through the Nogva Servo Gearbox in Brown in the middle with the two flanges connecting to the Fwd/Right end of the prop shaft and over through the Prop Log, out through the end of the skeg where the CPP propeller in Green sits.
Here is the dimensioned drawing from the Nogva engineers I worked with to design this custom CPP system for Möbius. It shows how the Propeller Shaft runs inside the larger inside diameter Prop Log Tube This is the drawing above with some of the many dimensions I was pulling off of the actual installation at the time so I could double check that my 3D model of all this was exactly the same dimensions as the real deal.
No need for you to pay any attention to all these dimensions but I thought that this front to back view might be helpful for those trying to visualise this whole setup and see the relationships between all the individual parts. Next up, let’s take a look at the six anti-vibration “feet” or mounts where Mr. Gee and the Nogva CPP are attached to the 25mm/1” thick engine beds running the full length of both sides of the Engine Room. I have never had enough time to create a full 3D model of Mr. Gee so you will have to use your imagination in the blank space to the Left of the Red Nogva Servo Gearbox, but hopefully this quick render of my Fusion 360 model will help you see how these six feet connect the whole Propulsion System to the Hull. I initially created this 3D model when I was designing these custom brackets that bolt to Mr. Gee’ thick cast AL crankcase and create the eXtremely strong and rigid attachment points for the vertical threaded adjustment rods on each foot/mount. Front mount is on the Left, Rear on the Right and both of these feet/mounts are the same anti-vibration models with thick rubber isolation blocks inside. This is what those Front & Rear anti-vibration mounts look like and of course Mr. Gee requires the MMXL version! Back in the real world inside the Engine Room, this is Mr. Gee’s Front Port/Left foot after we have lifted the whole Propulsion System up with big chain hoists to drill the holes for the M16 Grade 8 bolts that will hold each mount solidly to the Engine Beds in precisely the right location Fore/Aft and Left/Right. Here is a closer view of the mounting bracket I designed to be welded into the underside of the two Engine Beds and how these two different style of feet connect the Nogva CPP Servo Gearbox to the Engine Beds and Hull. Also a good shot of the output flange on the Aft end which is what need to get so precisely aligned with the matching flange on the forward end of the Prop Shaft. Here is what these highly specialised feet/mounts on the Nogva look like in the manufacturers catalogue before I purchased them. These start out being the same as any other feet/mounts by providing the rubber isolation that separates the upper body with the threaded rod from the metal base that bolts to the Engine Beds. However if you look closely you will see that there are also two large diameter SS pins going side to side across the Base through the elongated oval shaped rubber isolation block. Here is a bit closer view one of those two Nogva feet in my hand to try and show you those two pins and the rubber isolation block. Why are the Nogva mounts different than Mr. Gee’s some of you have asked. Because in addition to providing the anti-vibration connection to the Engine Beds these also deal with the very significant THRUST forces which would otherwise be trying to push/pull the whole Propulsion System fore and aft as the propeller “bites” into the water and pushes the boat forward or reverse. The Nogva Servo Gearbox is built to be mounted solidly to a hull with no anti-vibration mounts in large commercial vessels so it also has its own thrust bearing setup inside to fully deal with all these eXtreme Thrust forces. However with one of our first principles being Comfort, the addition of these specialised thrust feet/mounts will help eliminate the transmission of vibration and noise to the hull and make for an eXtremely smooth and quiet boat when underway.
This is what the real deal looks like as we were drilling the mounting bolt holes in the Engine Beds, hence all the AL chips.
Good shot of the custom Rear brackets bolted to Mr. Gee on the Left side and the underslung bracket for the Nogva feet/mounts over on the Right. Putting it all together, this shows you the whole Port/Left side of the Propulsion System with all three mounting brackets and their feet/mounts.
But hang on a minute …………………………………………
………………………… what the heck is that underneath Mr. Gee?!?!?!?!?!?
Let’s zoom in a bit closer to find out……………… Aha! So THAT is what this week’s title is referring to about “ When you can’t get Over it; Get Under it!”.
So what was the problem that required raising the whole Propulsion up in the air and me spending all day Thursday up close and personal with Mr. Gee’s underbelly?
Well, as Murphy’s Law would have it, when Hussein drilled those two holes for the middle two feet on the Aft end of Mr. Gee, they turned out to be right on top of a 15mm thick vertical AL stringer running down the length of each Engine Bed. Ugh! This meant that while the threaded ends of the mounting bolts could go through there was no space for the washers and nuts underneath!!! Grrrrrrrrr
Going back to this render you can see that 15mm vertical stringer underneath the Front foot/mount where it was NOT a problem as the mounting bolts are further off centerline but if you follow that stringer Aft/Right you can see how it runs right through the centerline of the two bolts in the Aft Foot/Mount on Mr. Gee and hence this problem.
The solution? A rectangular slot was going to need to be cut into the stringer where it was welded to the underside of the Engine Bed to create enough space for the thick washers and nuts to slide into.
We tried to solve this problem by going Over the Engine Beds but as you can perhaps see, there wasn’t enough room to get in there with drills, Dremel tools, chisels and files. We could have used a plasma gun but it would have spewed molten aluminium all over the Engine Room so that was a non-starter.
*someone* was going to need to go at this problem from the UNDER side. As you may recall from seeing Hussein in some previous posts and down below, there as simply no way HE was going to fit in there, so guess who was elected??? No recount needed by the way!
With the Propulsion System firmly blocked up on all four corners I could pull out some of my Houdini moves and slither into this space with my headlamp and use various WMD, Weapons of Mass Deletion, to cut a rectangular slot in the vertical stringer under the four bolt holes. I was one pooped Pirate when I finally got home to my Captain at the end of the day but it worked as planned and there was now plenty of room for the nuts and washers for the bolts for these two middle feet/mounts to thread into. Whew!
Going back in time a bit, in order to lift the whole Propulsion System up in the air so I could get underneath to cut those four slots, Hussein, Nihat and I had rigged up these two lengths of square steel tubing that Nihat had welded large D-rings to the middle underside and spanned the big hatch in the Aft Deck. We then hooked a large chain hoist onto each D-ring and connected their bottom hooks to straps around the front end of Mr. Gee and the built in lifting eye on the Nogva.
It all worked very well and also gave us a very safe and precise way just barely to take the weight off of the six feet/mounts so we could move them in their Goldilocks Just Right locations as we fully align the two flanges which is the next step in this process.
ALIGNING the PROPULSION SYSTEM:
This is the first part of the alignment challenge: get that male threaded end of the CPP Pitch Push/Pull rod coming out of the center of the Prop Shaft, PERFECTLY aligned with the female threaded Pitch Piston protruding out of the center of the output flange on the Nogva Servo Gearbox.
The prop shaft and pitch rod are fixed in position so they can’t move Up/Down or Left/Right, they both just rotate concentric with each other. So the alignment has to happen by changing the angle of the Propulsion System.
It is a slow and exacting process where we slide the feet/mounts to adjust the Left/Right position of the centre of the Nogva Pitch Piston/Flange and then adjust those big adjustment nuts on the vertical threaded rods on each of the six feet to change the angle of the Propulsion System and move the centre of the Pitch Piston/Flange Up/Down in the process.
It took several hours going back and forth from measuring and checking the Aft end here and then into the ER to tweak the six big adjustment nuts but as you can see here, we eventually hit the Goldilocks Jackpot and had the Push/Pull Pitch rod dead on center and ready to be threaded into the Pitch Piston. It was slow going turning the Pitch Piston with a wrench on those two flats so the bulb finally went on for me and I blocked the end of the wrench in position and then went outside and down to the Propeller and kept pressure pushing it forward while I rotated the bit 4 blade prop as if it were some eXtremely long bolt and that worked perfectly. The last bit of precision is to get the length of that exposed threaded section of the Push/Pull rod above, to be precisely 7.5mm away from the aft end of the hex locknut as per the Nogva installation Manual you see here. It can actually be between 5-10mm so I set it at the middle of this range at 7.5mm and torqued the locknut down to 100nm.
* for those curious, “Servo bevegelse 50mm” is Norwegian for “Servo Travel = 50mm”. 25mm on each side of “neutral” or Zero Pitch.
With the Pitch Push/Pull rod all centred and locked in place I could now put on the two split halves of this Red Prop Flange and start the second phase of the alignment process. This has two components to it; getting the mating flange surfaces precisely parallel to each other and also getting the two flanges equally perfectly aligned with each other axially. These two figures from the Nogva installation manual shows these two alignments very clearly and as you can see it needs to be eXtremely precise, no more than 0.05mm / .002”. FYI, this is the thickness of THIN human hair. This will all be sounding very familiar if you were with me two weeks ago when Hussein and I when through the exact same process in order to find the precise location of the base of each foot/mount so we could mark out the location of the holes for their respective bolts. This is a photo from that previous alignment and when we, hopefully, all get back to work on Nov. 30th we will do as Hussein is doing here and use thin feeler gauges to measure and ensure that the gap around the full circumference of where these two flanges mate, is exactly the same. I.e., they are perfectly parallel. To get there we go through the same adjustment procedure I outlined for getting the Pitch Push/Pull rod center aligned by sliding the feet Left/Right and/or turning the threaded adjustment nuts Up/Down.
I know this is not riveting stuff for almost any of you but this is such a critical part of having a smooth quiet Propulsion System that it gives me tremendous joy and satisfaction. Fortunately it is also not a process you need to go through very often so well worth the investment in time now.
FINISHING the EXTERIOR of the ALUMINIUM HULL
Nihat was the only member of Team Möbius on hand this four day week but he is one of our most relentless workers so he finished all his work on the Port/Left side of the hull and moved around the Bow to pick up where Uğur had left off last week.
You can see the multi stage process quite well in this shot. First the welds along each butt joint of the hull plates needs to be ground flat and flush such as you see running along Fore/Aft just below Nihat’s belt line. Then any work marks on the surface of the plate need to be ground off which leaves a finish like the one on the far Left here. This nose on shot of the Bow shows the Start/End of this whole process with Nihat just getting started on the Left side of this photo (Stbd/Right side of the hull) which is in contrast with the surface finish on the opposite side that he has fully finished with a random orbital sander. Here is a shot looking straight onto that same finished surface. The Waterline is about 200mm/8” above the weld at the bottom so that does not get fully ground down flush as this will all be covered wtih epoxy primer and International InterSleek 1100 foul release “Bottom Paint”, so we can use filler to get all the surfaces below the Waterline flat and smooth prior to painting these surfaces.
You Made this Bed; Now Lay in it!
None of our interior crew was available this week but the big memory foam mattress has been cut to size and the cover sewn up for over a month now and it was going to be much easier to get it onboard before they put in all the glass windows around the Pilot House/Super Salon so I was able to get a strapping young worker from the boat next to us helm me wrestle the mattress aboard.
As is often the case with boat beds, their sides are no parallel and this was the case with the Right side here as it runs parallel with the side walls that curve in with the hull. But Sinan our master upholsterer was able to quick cut the foam with his special electric knife and then resew the cut edge of the very nice mattress cover so it all fits in like a glove. It was actually much easier than I thought it might be. This is 30cm / 12” thick memory foam so we were able to bend it and flex it just enough to get it through the Entryway WT Door into the SuperSalon and then down that spiraling stairway into the Master Cabin in the background on the Left.
Captain Christine has not been able to be onboard for over a week so it will have to now wait until after Nov. 30th for her to come test it out.
When you get out of that Bed, Test out this Helm Chair!
For similar reasons I wanted to get both our big Llebroc Helm Chairs aboard before the glass company arrives next week to install all the SuperSalon glass windows and all the plexiglass windows around the whole upper SkyBridge.
We also moved the slightly different and just as cool Llebroc Bandera Series 2 Helm Chair into the Super Salon Helm Station but I didn’t get a chance to take any photos so you’ll have to wait till we get back onboard for me to show you that beauty.
It felt very good for me to be finally moving things like these Helm Chairs onboard to their final resting place as it makes the Launching of Möbius feel that much closer and real. I had the same feeling when I was also moving these three 18 litre/5 USG cans of hydraulic steering oil onboard on Friday. This will soon be filling up our 55L hydraulic steering oil tank that feeds our whole Kobelt steering system and I’ll show you that as it happens.
Next up were these three cans with almost 60 liters / 15 USG or one of my favorite engine oils; Shell Rimula R4X 15W-40. In addition to being a top quality engine oil I have found this to be one of the easiest brands to find most anywhere in the world as this is also commonly specified by the big diesel engine companies for use in tractors, trucks, cranes, etc. that are needed and used most everywhere.
I also moved all our anti-freeze onboard but didn’t get any photos, which I’m sure you are all so sad about. Not!!
And that’s all from your intrepid cub reporter here in Antalya Turkey for the week that was November 10 through 13th, 2020. Hope you enjoyed this week’s abbreviated posting and I will be back with more next week.
Please do keep your questions and comments coming by typing them into the “Join the Discussion” box below. They are eXtremely helpful and meaningful to both Christine and myself and MUCH appreciated. Thanks!
This will be a much shorter blog post than usual (lucky you!) as it was just a one day work week at Naval Yachts this week with them being closed from Nov. 3-10. However, as usual there was still some very exciting new developments and new arrivals this past week that both Christine and I are anxious to share with you. The theme this week seemed to be about “mounting” new items that have just been delivered such as mounts for pumps & alternators, mounting computers and mounting/installing glass walls and doors in the showers. Without further drivel from me, please grab a comfy chair and a good beverage and come along for this week’s Show & Tell here in Möbius.World.
SHOWERS: Works of Art & Engineering
I’ve been showing you for many months the progress in building the Heads and Showers in the Guest and Master Cabins and our extensive use of glass in both. This week all these glass panels were delivered to Naval Yachts so we can finally show you what the real thing looks like although you will have to wait for another week or two to see them fully installed aboard. For those that are new here or don’t remember, here is a quick rendering of the Master Cabin from the perspective standing in the Entryway door looking forward towards the Bow. Note the two glass plate walls that form the corner of the Shower in the background of this render. Switching locations, here is what it looks like when standing front and center in the Master Cabin looking Aft with the etched glass Shower wall corner in the foreground on the Right. We are SO grateful to be surrounded by so many talented family and friends who very generously and excitedly want to apply their many talents to features inside of Möbius. Here is one of the best examples; our dear friend Sherry Cooper in her AbFab apartment in downtown Vancouver B.C. working with us on the graphic designs to be etched into those glass corner wall panels. I have known Sherry and her husband Rick since we were teaching High School together on the Canadian jet fighter base in Baden Baden Germany in 1980-84 and to say that Sherry is talented is about as big of an understatement as I know how to make.
To find out more about Sherry and see what I meant check out her other works HERE and HERE as well as her Instagram page HERE. Christine and I worked with Sherry to describe as best we could what we wanted to achiever with these etched patterns which was things such as a marine/nautical theme, a taste of First Nation people’s art from the British Columbia area we know and love and to have all this captured in a somewhat abstract and ethereal way.
This is what Sherry came up with and we think the nailed it! A perfect example of our favorite Goldilocks; just right, just for us type of result. The sketches above are relatively small hand sketches and we needed to transmogrify these into much larger sizes and be in a CAD/CNC format for the etching work to be done. Hakan, one of our former Team Möbius members took on this task and created these two Vector based files in AutoCAD which we then sent to the glass etching company. The etching company used these vector files to CNC cut these shapes into white peel & stick vinyl which they then attached to the two glass panels and sent us this photo on WhatsApp to make sure this was what we wanted and then they went ahead and did the etching. Here are the finished panels that were just delivered with all the other glass panels stacked on top and set onto a table below Möbius for now as they await being carried onboard to be installed. To give you a bit better idea of what these etched panels actually look like, I slid the glass stacked on top off to the side a bit to shoot this for you and give you a bit better sense of the real thing.
Thank you SO much Sherry! We LOVE what you’ve done and we can’t wait for you and Rick to come join us and take over the Master Cabin so you can shower within your own “walls of art”. Back in the Guest Cabin we are keeping it a bit simpler with “just” a plain glass door for the Guest Shower that you can see in the stack of glass above and will also soon be installed.
Boat Computer #2
We need plenty of computer muscle to power all the sophisticated navigation software, equipment, monitoring and multiple monitors we have onboard the Good Ship Möbius and so Christine has been busy researching, specifying, ordering and building our two Boat Computers. She finished our primary PC a few months ago and this week the 2nd Boat Computer arrived from the US. This is a Kingdel fanless mini PC which Christine finally tracked down on Amazon US and had shipped over to us here in Antalya.
How fast is this new little guy? Well, Captain Christine, who is normally an Apple Gal I might add, said “It boots up faster than you can say Windows 10”
Our newest family member will live in the overhead space above the main Entryway beside the SkyBridge helm station which is what it will primarily power.
For our fellow Geeks and Geekettes out there, below is a peek inside and the basic specs:
Fanless, Smart Design, Full Metal Case, Silent Working, High Speed CPU & SSD, 2 Years Warranty.
Pre loaded with Window 10 Pro, complete with full license key for reinstalling.
This is Christine’s temporary techno test bench in our apartment where she has both Boat Computers hooked up to load up all the software and start configuring them all.
Boat Computer #1 is seen here underneath the table as it has a larger “desktop” size which provides much more space for multiple fans to keep things cool, more expansion board spaces and other advantages we wanted. It is “only’ an i7 9th generation processor but can run all six of our big monitors and will be our main “go to” computer when we are onboard. I thought this shot might give you a better perspective on the size differences although the Mini PC I am holding in the foreground appears larger than it really is due to being so much closer to you in this shot.
For those wondering, the black box on top is our Synology NAS or Network Access Storage. You can slide different hard drives and SSD’s into this box and right now we “only” have two 4TB hard drives in there but easily expandable and we just took note of two Western Digital drives that are 16TB each for just $200 so we will see if we need more storage and add as we do.
We use all this storage volume on our NAS to hold everything from our huge vaults of music and movies for our onboard entertainment and on them more serious side this also holds multiple sets of electronic charts for the whole world, satellite images, all our manuals for all our onboard equipment, all our software both personal productivity software such as MS Office and all our navigation software such as TimeZero, Coastal Explorer,
Why not just keep all this in the cloud? We do this too, but this NAS gives us direct access to everything without any internet connections at all. So this creates what you can think of as own personal “onboard cloud”.
Mounting Jabsco Sea Water Pump
For the Gardner engine cooling, I had wanted to install a keel cooler which is made by cutting lengths of aluminium pipe in half lengthwise and welding these to the outside of the hull with U-turns on the ends to create a continuous loop. The two In/Out ends are then welded through the hull and the engine coolant (anti-freeze + water mix) is circulated through this loop and transfers its heat out into the passing sea water. Super efficient, no extra pumps or moving parts required and I had this on our previous boat that worked great. However, for a variety of reasons Naval switched to a heat exchanger style which works like this. Sea water is drawn in through the Sea Chest and strainers by an engine driven sea water pump which then circulates the cool sea water through a variety of heat exchangers for the engine coolant, engine oil, transmission/CPP oil and finally goes to the wet exhaust to cool it and then the sea water goes out through the exiting sea chest back into the ocean. These heat exchanger style works fine and is on thousands of boats, just more complex and more moving parts as you can see. After some research we chose to go with a Bowman heat exchanger which are one of the world’s largest heat exchanger manufacturers based in the UK and they are beautifully made bits of kit to be sure. Here is a generic illustration showing how a heat exchanger works and it could not be more basic; cold sea water enters the large cylinder (Shell Inlet) and flows around all the smaller tubes inside picking up their heat and then exits out the other end (Shell Outlet). The liquid to be cooled enters the Tube Inlet and runs through all the small diameter rods or tubes that are surrounded y the colder sea water and then exits out the Tube Outlet having given up most of its heat. That inner “Tube Stack” as it is called is made out of Titanium in ours and you can see that it is simply a bunch of small diameter tubes which are bundled together and have liquid going into one end of each tube and then out the other. I didn’t want to take our Bowman’s apart but here is a similar model that will let you see how the Tube Stack fits inside the larger diameter heat exchanger body where the sea water flows. Sorry, not the greatest quality but best I could find in a pinch here late tonight but this should show you the basic layout and how the various liquids flow through a heat exchanger system.
As you can see this is all simple enough but it does require the addition of a sea water pump to pull in the sea water through the Intake Sea Chest in the Engine Room and then pump it out through all the various heat exchangers and then finally provide the sea water that is injected into the wet exhaust elbow to cool the exhaust gasses.
I chose this Jabsco 1 1/4” bronze pedestal base sea water pump as I have had these in previous boats and know them and their maintenance quite well. I like to “go with what I know” you know! The next bit of “complexity” is that we now need to mount this Jabsco sea water pump and figure out a way to have Mr. Gee drive it. Cihan has his hands more than full so I have taken on building this mounting system for the Jabsco pump. The Gardner 6LXB often had sea water pumps mounted on them so there is this very solid flat “pad” up at the very front Stbd/Right side of the massive cast aluminium crankcase with three good size mounting studs so that’s where I’ve designed a mounting system to be. Here is the top mounting bracket I came up with all ready to bolt onto that “pad” in the photo above. Not quite up to Gardner standards perhaps but I assure you it will last as long as Mr. Gee will, aka forever! Difficult to photograph for you but this is what the test fit assembled mount looks like. The thick AL plate at the top is what is bolted to that pad you saw above which then has the tall thick vertical AL mounting bar bolted to it at the top and an L-bar bracket for the bottom support where I used three bolts on the Sump (oil pan) to hold the bottom of the mounting bar.
The Jabsco sea water pump will bolt about half way along the length of the mounting bar and will be driven by a timing belt type of rubber belt off the Gardner’s crankshaft which you can see off to the mid right side of this photo.
Here is a different view from up above.
The big cast bronze housing is the engine oil heat exchanger which just clears the AL top plate of the upper mounting plate.
The large round cast AL item on the bottom Left with the copper tube snaking upward here is Mr. Gee’s coolant water pump that is internally driven off the camshaft. For the curious and observant of you, the large diameter black disc resting on the crankshaft is the chainwheel for Mr. Gee’s hand start cranking system which I will show you more of later. OK, that’s it for this week folks. Sorry it is so short and that we get a much longer work week this week and have more to show you in the next Möbius.World Progress Update Show & Tell. Christine and I have had a VERY busy weekend and all day today (Monday) helping out two other couples who may become future new XPM owners. One couple via a lengthy video call (thanks Andrew & Lili) and the other couple who are long time circumnavigating sailors who are here in Turkey for the winter and drove over to spend the weekend with us here in Antalya to meet the people at Naval Yachts and get a full tour of the Free Zone and Möbius. We had a great time with Wade & Diane who have such a similar history as Christine and myself and we have just said goodbye for now as they head back to their boat which is about a 3 hour drive West along the coast to Alanya. Great to meet up with you Wade & Diane and look forward to more such visits.
And thanks to all of YOU who chose to join us here on the Möbius.World blog every week. We really appreciate having you along for the ride and for all your questions and comments that you write in the “Join the Discussion” box below. Please keep them coming, we prize them highly.
This week’s Progress Update is like they used to say on Sesame Street “Brought to you by the letter F” as Team Möbius worked on installing the FIRE Suppression System, FANS for extracting air out of the boat and getting Mr. Gee and his new literal Mate the Nogva CPP Servo Gearbox all mounted on their six FEET as well as aligned with the CPP Prop Shaft. Even though there was 1.5 days holiday in the middle of this week for the big Turkish Republic Day on Wednesday and Thursday, our Team was very productive and got lots done so grab a favorite beverage and chair and join me for this week’s Show & Tell of all this Fun work that got done.
FIRE SUPPRESSION SYSTEM:
If you were with us last week you will recall seeing Cihan and Hilmi installing and wiring up the Sea-Fire Automated Fire Suppression System components. This week Hilmi picked up with installing all the wires, making all the connections and testing the automated system out. This is the “brains” of the Sea-Fire system with all the relays for the various shut downs and “firing” the fire extinguisher.
Inside all other parts of the boat we simply have very good manual fire extinguishers which are these cool new type from Maus.
However in the Engine room we and the various ABYC/ISO/CE standards require a fully automated Fire Suppression SYSTEM.
In addition to looking after the automatic triggering of the release of the 3M Novec 1230 extinguishing agent this system must also shut down the engine, close all the vent dampers, turn off the venting fans and sound the alarm. This can also all be triggered manually with a Morse pull cable. Hilmi and Uğur worked closely together as they needed to coordinate between Hilmi laying out the locations on the Port side wall of the Workshop where he wanted to mount the Sea-Fire control box and where he wanted Uğur to cut the slots in the Alucobond panels. The other Bronze box is one of the Kobelt engine control boxes and Hilmi now has the cables pulled through the wall panel slots below where he will be mounting the Sea-Fire control box. He will install the Sea-Fire controller inside this waterproof plastic junction box to keep everything all tucked away and well protected but first he needed to drill all these holes for the cable glands. Here is that junction box with the Sea-Fire box inside now mounted to the wall. Now that the Alucobond wall panels were in place Uğur could install the mounting screws through them into the aluminium frames behind.
The row of Black and Violet boxes up above are part of the Maretron monitoring system and Uğur will later install the L shaped AlucoBond corners to protect them. With the cables all pulled thorough their WT glands and the labels attached, Hilmi could strip the cable cover off to release the individual wires and start making all the connections to the control box for the different shut down relays and other controls. The standards also require that there be a control and indicator lights at the Main Helm which is where this round version is headed. For testing purposes we just used that short ethernet RJ45 cable.
This remote confirms that the Fire Suppression system is On and working properly before it will allow you to start the engine and also allows you to set off the whole system from here as well as silence the alarm. That round remote control head will soon be installed in the angled dashboard up at the Main Helm amongst these other controls.
Once Hilmi and I had it all tested and all was working fine, the Grey ethernet cable you can see plugged in here, goes up to the Main Helm dashboard where the round controller will be mounted a bit later. And that’s it! Everything all buttoned up and ready for more testing.
More lights went in this week including these beautiful beasts which are Hella LED flood lights.
This one will be mounted to the front “mast'” or arch at the Bow to light up the waters directly in front of us and others will be mounted to light up the water along both sides and off the rear of the boat. These Hella Work Lights are a thing of pure beauty and joy to my heart and mind not only for their incredible candlepower but their Black bodies are ribbed cast aluminium and that bracket is all 316 stainless. What’s not to love?!! We also have several of these Italian made Osculati Faro LED spot lights for when we want a more narrow beam to go greater distances. Similar to the Hella lights these ribbed bodies are also all cast aluminium with SS mounting hardware and epoxy sealed wiring to help them survive and thrive in the harsh marine environments and weather we will be subjecting everything to. More “Hella a light” was the arrival of these two LED lights on flexible stalks that will be mounted at each helm for when we need to read something up close. These have both a bright white LED as well as a dimmer Red light to help retain our night vision when on passages. As exciting as all those other lights are to me, THESE are the ones that really make my day as these are my working lights inside my Workshop, Forepeak and Engine Room.
For me and I think most others, there is nothing that beats having GREAT lighting when you are working and these babies are truly amazing in how much bright white light they blast out into all the spaces where I work aboard. All those lumens are augmented all the more as they bounces off all those White Alucobond surfaces on all the walls and ceilings such that the whole space is eXtremely well lit. Just wait till we peel off all that protective plastic film and these surfaces are pure White Light!
For those interested, here is a shot of the back of one of these LED work lights. They would have thousands of great applications and are highly recommended by this worker.
TOWERS of SHOWERS!
Cihan was his usual Productive Plumber self again this week and he has now has these gleaming Stainless Steel “shower towers” all plumbed and working.
This is a slightly different model than ours but it will help you visualize what they look like in action. If I don’t come out of shower session with this then I must be doing something really wrong. To say nothing of how much fun our GrandKids will have with it as there is a matching unit in the Guest Cabin Shower. Which looks like this. The new fittings he needed arrived this week so Cihan was also able to finish mounting these beautiful SS towel wormers that are another work of art and engineering to me. There are also two matching units of these towel warmers, one in the Guest Bathroom and one that will go on the far wall you see here in the Master Bathroom. The four smaller holes you see here (click to enlarge) are for the SS mounting tubes and then the larger ones on the bottom are the threaded SS fittings where the PEX hot water lines emerge. These Turkish made beauties are just fabulous to work with and this square bodied tap to turn the hot water on/off is another good example of the “little things” that make all the difference with both their solid heft being solid SS as well as the squared off design which has them blend into the overall sculptured look and give no indication that they are also functioning taps. One step back to show you the whole towel warmer. And a few more steps back to show you the whole Shower and Bathroom space. The etched glass walls that will form the corner of the Shower where I am standing to take this picture are due to arrive next week and just wait till you see how this space looks with them all installed and lit up! The Bio-Bidet 1000 on our VacuFlush toilets are now all installed along with their controls. This controller is wireless and clips into a small plastic hanger on the side of the cabinet. Or you can run the basic functions with the SS control head you see on the aft left side of the seat and see that all is working well with the LED indicator lights on the Right.
I received a number of queries and comments about these bidet units so I will let the following pictures do all the talking to answer those. Human contact required to avoid any “surprises” when curious onlookers are checking things out. And you can study this better shot of the remote controller to figure out the rest.
Oh, and yes, there is a matching unit for all our guests in their cabin too. Elsewhere in the Master Cabin, Serkan has the templates for the two mirrors on these cabinet drawers temporarily attached to check that they are the just right size before they get sent off to the glass and mirror shop. And he is also making up similar templates for the other mirrors in our Master Cabin such as this one on the inside of the Cabin Entrance door.
Cihan also received the 127mm / 5” ID exhaust hose this week so he got starting installing the first short length underneath the Day Tank on the Starboard / Right side of the Workshop. This relatively short length hose, about 1.2m / 4 ft, connects to the AL pipe welded into the Engine Room wall on the far Left and carries the exhaust gasses over and out the same size AL pipe welded into the side of the hull. These special rubber hoses are able to safely carry the exhaust gasses because they have all been well cooled by the sea water injected into the hot exhaust gas up at the top of the Engine Room.
eXtraction is eXhausting TOO!
As you can see, it was all hands on deck quite literally as the boys got to installing all the extraction fans and dampeners inside the Vent Boxes on the Aft Deck. This is the Stbd/Right side Vent Box where the large rectangular ducts coming up out of the Workshop and the Engine Room exit and there is an extraction fan for each one. This is the Vent Box on the Port/Left side where the opening on the upper Left goes all the way down to the floor of the Engine room and keeps Mr. Gee well fed with clean fresh air. The slotted square on the bottom Right is for the extraction of air out of the Guest Cabin.
The box on its side near the middle directly in front of the slotted opening is one of the demister or mist eliminator units which removes most of the salty humidity in the air before it heads down into the ER. More on that in a moment.
Here is a close shot of the upside down box in the lower Right foreground above and this is an example of how the various extraction fans are attached to their outer facing mounting plates which bolt to the Vent Boxes. Like this. This is an upside down Dampener that Uğur is attaching to its mounting plate which then bolts to the Vent Boxes similar to the extraction fans.
These Dampeners are installed on both the Intake Supply Air going into the Engine Room as well as the Extracted Air being pulled out and they are normally in the closed position so that no salty air is getting into the ER when we are not running Mr. Gee which dramatically reduces the consequences of salty air in the ER most of the time. Here is what one of those Dampeners looks like when mounted into the Vent Box. The Orange box on the far Left of the Dampener is the motorized automated controller that Open/Closes the Dampener plate. And the White round cover you can just make out on the Left side of the Vent Box is to provide access to our hand if you ever need to manually Open/Close the Dampener. Over on the opposite side Vent Box, the Dampener is mounted vertically inside the long rectangular duct mentioned above that takes the fresh air down to the bottom of the Engine Room. Dampener door is closed as you can see in this photo and as part of the start up procedure these dampeners are rotated open by their 24V electric motors and stay that way until just after we shut Mr. Gee down OR when the Sea-Fire system shuts everything down in the case of a fire. I’ve received quite a few questions about these Mist Eliminators or Demisters which remove most of the salty humidity from the air before it goes inside the ER so here are a few close up shots so you can see how these work. This is the rear view and basically the way these work is that these black plastic vanes inside force the air to flow through a convoluted path where the water droplets condense out of the air. Hard to capture on camera but these Black plastic vanes are very complex somewhat wave like shapes inside with equally complex surfaces. These are all the result of years of research and testing apparently to perfect their ability to extract all that harmful salty water vapour which then runs out the little SS drain hole you can just make out in the bottom center of this photo. There is then a plastic tube that takes this extracted water down to the Sea Chest in the ER and back out to sea where it belongs.
See what I mean? eXhausting right?!!
PROPULSION SYSTEM ALIGNMENT:
Lastly for this week let me show you a bit about the night shift I’ve been on this past week working with some expert motor and CPP propulsion system aligners from another shipyard next door. Meet Emre on the Left, Hussein standing on the Right and that arm in the lower Right is ………….
…….. Hayretttin who is busy choosing the right 0.05mm feeler gauge as we are about to alight the output flange of the Nogva Servo Gearbox with the matching flange on the CPP Propeller Shaft.
Of course you have all met Mr. Gee, our Gardner 6LXB many times by now so he needs no introduction. I won’t go into too much detail on this whole alignment process as it is likely not of too much interest to most, but here is what we are working on. The Red flange on the Right side here is attached as you can see to the forward end of the big 65mm OD propeller shaft going aft to the 4 bladed CPP propeller, and the matching Maroon painted flange that it is now butted up against is the flange on the Output shaft of the Nogva CPP Servo Gearbox. The goal is to get the inner faces where these two flanges come together PERFECTLY lined up. After several hours of wrangling the now solidly connected Mr. Gee and Nogva Servo Gearbox assembly into position such that the center of both of those flanges perfectly line up, we now need to use the threaded rods on the six different “feet”, or flexible mounts, four of which attach Mr. Gee to the 25mm thick Engine Beds and then two which similarly attach the Nogva Gearbox to those same Engine Beds.
We use very thin 0.05mm / .002 inch feeler gauges to check 360 degrees around where these two flanges meet as this is the maximum allowable difference allowed. Zero space between them is ideal which we pretty much achieved by nights end with ever smaller adjustments to these six mounting feet. Prior to all this, I had done that centering I mentioned above to get the Push/Pull Pitch rod with the male threaded end poking out of the center of the Prop Shaft on the Right, exactly lined up with the female threaded piston extending out of the Output Flange on the Nogva Gearbox on the Left. There is a hydraulic pump inside the Servo Gearbox, hence the name, which pushes that piston forward and aft as you move the Pitch control lever at both helms. This in turn moves that Pitch Control Push/Pull rod fore and aft which is what is translated into rotational movement inside the hub at the center of the CPP Propeller which thus rotates each of the four prop blades in synch with each other to vary the pitch of the prop from zero which would be like “neutral” no thrust to the boat fore or aft and then at our choosing either rotating the blades and thus increasing their pitch to push the boat either forward or reverse.
Using a dial gauge I was able to move Mr. Gee + Nogva assembly to put the center of that output piston spot on the center of that threaded push/pull rod inside the prop shaft and then rotate the Nogva output flange to thread the rod into it.
There is a precise measurement of how far to thread that rod in so that the pitch rod is centered in its travel which is what you see here, and then I could tighten this lock nut to hold it in that position.
Once this was all done I could mount the two halves of that Red prop shaft flange and do the alignment I described above. Et voila! A perfectly aligned Engine, Servo Gearbox and CPP prop shaft!
Now we take it all apart again after carefully marking the position of the mounting bolt holes in each of the six flexible feet as we need to lift the whole assembly up in the air to give us enough room to drill all those holes in the Engine Bed for those bolts. Next week’s night shift will be doing this and then going through the whole alignment procedure one last time and then bolting the six feet down to their final positions.
I know this is riveting stuff so do stay tuned for all that excitement next week!
Hope this wasn’t all too boring and that you will consider joining us again next week.
Whew! What a week this has been. A shortened work week for Christine and I as we traveled to Kapadokya, as it is correctly spelled in Turkish but Anglophones spell it Cappadocia, with two dear friends, Philip & Nancy who flew in from Switzerland and Australia for a fabulous albeit much too short visit with us. However you spell it Kapadokya should be pronounced “firkin’’ AWEmazing”!!
Captain Christine is busy making a special video just for all of you and will post that separately later today.
**UPDATE: You can watch Christine’s beautiful video of our AWEmazing hot air balloon experience over the equally inspiring landscape of Kapadokya HERE NOW!
*** For more details and photos of our time in Cappadocia including her new video are now available in Christine’s blog post HERE.
But Wait There’s More! She has also already added a great wide angle shot overlooking Kapadokya on our balloon ride and added this to the “slider” photos at the top of the Mobius.World blog so be sure to check that out too.
For now, I’ll just tease you with a few shots that I managed to grab as best I could with my mouth agape.
Meanwhile back at Naval Yachts Team Möbius put in a very full week and made lots of progress on many fronts so I’ve got lots for you in this week’s Show & Tell. Grab your favorite beverage and reading spot and join me for this week’s dive into the building of mv Möbius.
It is going to steal the show anyway, so let me start with the “Hot Air” part of this week’s title as in our awemazing hot air balloon ride early Tuesday morning with Philip & Nancy. As incredible as it may be, the biggest attraction of Kapadokya is the incredibly unique geography filled with what many call “fairy chimneys” which are tall, cone-shaped rock formations clustered in Monks Valley, Göreme and elsewhere. My photos won’t hold a candle to Christine’s video so I would recommend you go watch her video HERE right NOW before you go any further to get a much better sense of this experience.
No rush, it will only take a few minutes for you to watch, I’ll wait till you come back ………………………..
……………… See what I mean?
Say after me…………. firkin’’ AWEmazing!!
Now that you have a better sense of this incredible natural wonder of the world in Kapadokya, I encourage you to also click to enlarge the photos above and below so you can check out some of the geography of this region. Kapadokya is a UNESCO World Heritage site and as they note “Other notables sites include Bronze Age homes carved into valley walls by troglodytes (cave dwellers) and later used as refuges by early Christians.”
Our original reservation for a sunrise hot air balloon ride was for Monday but this was unfortunately cancelled when the aviation authority for the region issued a weather warning. But we were up at 5am on Tuesday with fingers crossed as they started to luff our balloon and fill it with hot air from these two propane burners while we anxiously awaited word that we would be allowed to take off. Our pilot Hakan, or “Hakan Solo” as Christine dubbed him as he is a huge Star Wars fan, was absolutely fabulous both as a person and as a encyclopedic knowledge of the area and as you saw in the video, a VERY skilled hot air balloon pilot. Hakan received word on his VHF radio that the authorities had approved the balloons to fly and with a few more blasts of propane flames we had lift off!
As you may have noticed we were not the only hot air balloon lifting off and there were a total of 150 balloons in the air that morning. And as if our senses were not already on overload this “Lady in Red” was but one of about ten Brides and Grooms who were taking advantage of this very popular location for wedding photos. We only had them for three days in Antalya and three in Kapadokya but the “density” of our experiences that we managed to pack into those few days was eXtreme and we now have even more memories of their visit with us.
While we were away Team Möbius stayed in close contact with me via WhatsApp and the short video below is what Cihan sent me on Monday to share this significant milestone of the first hot water produced on Möbius and tested at the Vanity Sink in our Master Cabin.
Taking a few steps back, this is where that Vanity Sink lives, front and center of our Master Cabin. In spite of the rather rough surroundings this solid glass sink is already stealing a lot of attention as it lights up with that LED light above and even more so when you clear out the protective foam behind the sink and the LED strip light in the bottom of the cabinet causes those blues to become electrifying.
Can’t wait to show you the final result once the Master Cabin is fully completed and all the protective plastic, cardboard and painters tape comes off. We can’t wait to see it ourselves! The ever productive Cihan had a very busy week and can you guess from this photo what his next project was? Correct! He is mounting our two SS “Shower Towers”. This one is in the Master Shower and mounts at a 45 degree angle in the corner on the far Left. And this one is in the Guest Cabin Shower. In addition to their great looks in our eyes, one of the many reasons for choosing this “Shower Tower” style is that all the plumbing is contained within the unit itself rather than being hidden behind the shower walls. The first photo above shows this quite well.
One of our five primary principles for our XPM is lowest possible maintenance so this factors into all our decisions and being able to easily remove this whole shower tower in the future provides me with great access to all the hoses, mixing valves, etc. The only thing inside the walls are the continuous runs of PEX tubing for the hot and cold water lines. Back in the Workshop, Cihan was busy getting many other systems fired up for the first time including this Webasto IsoTemp 75L / 20USG Calorifier that holds all our DHW or Domestic Hot Water and he adjusted this mixing valve to set upper limit of the hot water coming out of this unit. This cut-away demo unit shows how this IsoTemp unit has multiple sources to heat the water inside;
SS loop filled with heated water from our Kabola KB45 diesel boiler.
A second (not shown) SS Loop connected to the engine coolant on Mr. Gee (Gardner 6LXB engine)
230V electric heating element (small U loop in the middle) We expect to use the first option above, this Kabola KB45 as our primary source of heating our DHW as it is so quiet and efficient but we will take advantage of the “free” heat from Mr. Gee whenever he is running and then perhaps use the 230V heating element on the few occasions when we are plugged into Shore Power. Hilmi was working on the KB45 this past week as well and he has now finished the electrical connections for the Kabola with the mounting of the white Siemens thermostat you see on the upper Left corner. It is showing just 23C / 74F as this is the ambient temperature in the Workshop but we expect to fire up the Kabola in the next few weeks once we have some diesel in one tank and will show you that when we commission this unit. Our DHW also flows through the In-Floor heating PEX lines so Cihan was checking for any leaks and also bleeding the air off of these manifolds in the Basement where the circulation pumps push hot water through the three independent loops of PEX tubing inside the floors of each of the three cabins; Guest, Master and SuperSalon. These SS manifolds came as very complete units with build in temperature gauges on both the Upper Supply Manifold and lower Return Manifold as well as three RED flow meters along the top of the Supply manifold, three White flow adjusters on the bottom Return Manifold and bleed valves and drains on the ends of both manifolds. Cihan is also testing all the various plumbing system for proper operation and checking for any leaks and had a problem with this diaphragm switch on the High Water extraction system under the floor on the Port/Left side of the Workshop so he has the floor grate out right now. Back up front in the Master Shower & Head, Serkan has been busy with multiple jobs including gluing the Corian countertop in the Head/Bathroom. They use this clamping system very often of cutting lengths of wood that they bend into place and use the force to push in this case from the ceiling down to the Corian countertop below.
While they are at it, they used longer sticks to clamp and glue a composite water tank access hatch in the floor.
Let there be Light!
Our “Sparkie” aka Electrician Hilmi was as busy as ever this past week and very “illuminating” as he installed and connected most of the light switches onboard and Möbius now has her own interior lights on rather than all the industrial construction lights we’ve been using.
Apologies for the strange colour in this photo but Hilmi now has all our indirect LED strip lighting working such as these in the Corridor from the Engine Room to the stairs up to the SuperSalon with the Guest Cabin entrance on the middle Right. However the real eXciting illumination for me is that he has also been installing these super bright LED fixtures on the ceilings of the Workshop, Engine Room, Basement and Forepeak.
Check out THIS example along the Starboard/Right side of the Workshop and see how light and bright it is in there now with nothing but these three LED lights overhead. Even brighter over here on the Port/Left side of the Workshop overtop of my very long, and VERY messy, Workbench.
I don’t expect too many of you to understand but this makes my little heart go all aflutter as I can now see so clearly what I’m doing as I work here.
However, knowing what I’m doing is another matter all together! Same story inside the Engine Room as Hilmi mounts more of these eXtremely bright industrial LED light fixtures overhead of the Stbd side of the ER. I took a few photos when it was dark out just before leaving last night to show just how bright these working spaces are now. This is peering down into the ER from up on the Aft Deck. And here is what it looks like at night peering through the ER entry door. In addition to these overhead lights I will also be putting in some LED strip lights underneath the two lengthwise AL Engine Beds to light up the voluminous bilge area down there where of course everything seems to end up.
Ask me how I know?!! More exciting milestones thanks to Hilmi such as having these three Victron BMV7122 Smart Battery Monitor Gauges lit up for the first time. Next week I will get round to configuring them with all the right settings which only takes a few minutes.
We have 24 FireFly Carbon Foam L15+ 4 volt @ 450Ah cells which are wired 6S4P meaning that there are four sets of six cells wired in Series (6S) to create four 24V @ 450Ah groups. Two sets are then wired in parallel to create Bank A and Bank B which are each 24V @ 900Ah and then these two Banks are paralleled to create the overall House Battery Bank of 24V @ 1800Ah
Here is how that looks schematically. Two of the three BMV’s thus report on the condition of Bank A and Bank B and the third monitors the total 1800Ah House Battery. Some smaller but no less important jobs Hilmi ticked off this week included this 120V + 230V waterproof connection underneath the Upper Helm Station on the SkyBridge. This push button switch for the monster Lewmar 65 EST winch on the Aft Deck that will be most often used to raise/lower the Tender Davit Arch. This switch is being mounted on the Aft side of the Starboard Vent Box which also houses the 230V Kenyon Frontier electric Grill/BBQ. And running ethernet CAT7 cables in the ceiling of the Workshop. We have ethernet cable running throughout the boat for all the networking and connections between all our many electronic gadgets which we depend upon so highly and this also helps “future proof” the boat for adding more later.
Of course all those LED lights are working so well because Nihat and Uğur spent several days this past week mounting all the White AlucoBond panels on the walls and ceilings of the Workshop and the Engine Room.
These AlucoBond panels are working out eXtremely well as they create a super tough White powder coated surface of the outer 0.5mm layer of aluminium with a 4mm thick mineral core which is all non-combustible to meet and exceed all fire regulations. In addition to the ceilings and walls of the ER and Workshop, they also installed the AlucoBond on the interior of the Doghouse where you enter the Workshop from the Aft Swim Platform.
First they install the supporting framework for the AlucoBond panels using 30mm aluminium L-bar and flat AL plates welded to the frames and stringers of the hull and Doghouse framing. Then they use SS self tapping screws to secure each AlucoBond panel to the AL frames. The AlucoBond can be easily bent to create corners for places such as the panel around the Hatch in the forward end of the Doghouse. The AlucoBond is easy to work with using standard carbide tools such as jig saws, router bits and circular saws.
This makes creating cut-outs such as this one on the Left for the filler tube on the 55L / 14.5USG AL hydraulic oil tank for the Kobelt steering system.
Where edges of cut AlucoBond exist we cover them with U-shaped rubber edging which you can see if you click to enlarge this photo. Even before the protective film with all this Black & Red printing is removed you can see how well these White AlucoBond surfaces reflect the light from just these four LED lights in the ER.
Swim Platform Step& Storage Box
Stepping over the high sill of the Watertight door from the Swim Platform into the Workshop was a bit of a nuisance so Uğur quickly solved that problem by fabricating this Step/Storage box. An eXtremely KISS design (Keep It Simple & Safe) so I didn’t bother firing up Fusion 360 to create a model and drawings for Uğur as there are basically just two pieces of 5mm AL plate; one welded into the Swim Platform and Stbd side Stair and the other for the hinged top that creates the Step Tread. A small strip along the back for the SS piano hinge to bolt to and a small U-channel on the far Right side to act as a gutter for water run off.
Then tack-tack-tack goes Uğur ’s MIG gun and the Step is all framed up. Bend a thin strip around the two outside edges of the hinged lid and mount the SS piano Hinge. We have enough of the EPDM edge trim we are using for the Deck Hatches to use here to make this Storage box fully waterproof as the Swim Platform is often quite wet when we are underway with following seas and such as well as regular rainy days.
Et Voila!! We now have an eXtremely easy step In/Out of this doorway and a very handy Storage box on the Swim Platform for shower supplies, snorkel gear, etc. Thanks Uğur!
Nogva CPP Enters the Scene
What are Cihan and Nihat up to after ours in the dark up on the Aft Deck with the ER Hatch wide open? And what is THIS dropping out of the sky into the beautifully bright Engine Room? Aha! It is Mr. Nogva CPP Servo Gearbox coming in to join forces with Mr. Gee our Gardner 6LXB main engine.
With a CPP (Controllable Pitch Propeller) we don’t have a transmission per se as there is no forward/reverse gearing. Instead, by simply rotating the four propeller blades in synch we can smoothly change from “neutral” to Forward to Reverse and the push of a lever. The Nogva Servo Gearbox bolts directly to the massive aluminium flywheel housing on Mr. Gee as both have a standard SAE1 flanges and bolt patterns. so it was very quick and easy to bolt these two best buddies solidly together so that they form a single massive propulsion unit. Hussein works for a big shipyard next door where he specializes in engine/gearbox/prop shaft installation and alignment so he comes over when he gets off work at around 18:30 and he and I work on this installation and alignment.
He helped me get the Nogva dropped in place and bolted to Mr. Gee and then I stayed on a bit later into the evening to get everything all ready for the next and eXtremely important step. Getting the Nogva dropped in place and bolted up to Mr. Gee was very quick and easy, now comes the slower part of aligning the output flange of the Nogva Gearbox which you can see at the top of this photo. The prop shaft and flange are fixed in place vertically and athwartships (Left/Right) by the bearings which center it inside the AL prop log tube at the bottom.
So alignment involves moving the output flange to line up precisely with the matching flange that mounts on the forward end of the 65mm / 2.6” prop shaft. I took this shot looking forward towards Mr. Gee to show that we are already reasonably close and now need to move the Gardner/Nogva buddies over to the Port/Left side a bit and down a bit. Here is a side shot to help show how these two flanges meet up. Adjusting the angle and height of the Gardner/Nogva assembly is accomplished by adjusting the height of their respective “feet” or “flexible mounts”. Click to enlarge this photo and you can see how the Noga foot/mount at the bottom center can be adjusted Up/Down by turning the two large nuts on the vertical threaded shaft of the mount/foot. The similar rear foot on Mr. Gee can be partially seen in the very bottom Right corner of this photo. More on all that in next week’s update.
For the observant and curious wondering what that blue articulated hose with the little Red “hats” is, here’s your answer; it is the Tides Marine dripless SureSeal. The prop shaft has to pass through the aluminium shaft log tube and out through the aft end where the 4 bladed 1m diameter propeller sits so that puts a very large hole in the boat that needs to be dealt with and hence this seal between the prop shaft and the prop log tube.
The little Red “hats” as they are called are used to protect the SureSeal rubber lip seals from being damaged as you slide them onto the prop shaft. These simply pull out and are split to remove from the shaft when done.
In next week’s Möbius Progress Update I will pick up from here which is where I left off late last night (Saturday here) so do stay tuned for the next episode of “As the Prop Shaft Turns”.
Let me end where I began, with Hot Air. You have become accustomed by now to all MY hot air so be sure to treat yourself to some truly inspiring Hot Air by clicking HERE to watch the video Christine has just posted that condenses our 90+ minute Hot Air Balloon ride in Kapadokya down to just six minutes. Trust me, you’ll be glad you did.
Thanks so much for joining me here again this week and PLEASE consider contributing your questions and suggestions in the “Join the Discussion” box below.