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Thanks!

 

Manufacture of watertight doors, structural elements. Little scratch and photoengraving.

 

The top caissons are not glued, they are in fact fittings. They will be used to hide the resistances of the LEDs, hence the holes to pass the wires.

 

I used these two pictures of the CV-6 and CV-8 hangar to help me:

 

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I still have 3 more bottles, maybe some nitrogen to stick on the bulkhead, i don't know, it comes with the box.

 

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27471620-bouteille-de-gaz-nouveau-syst%C

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I'm still working on the front walls of the hangar but it's finished, I add details, either I extrapolate from the photos, or I unfortunately invent to furnish the hangar.

 

The documentations are relatively weak on the hangar of CV-8,   but by searching frequently on the internet we can find informations here and there on the English forums.

 

This ship didn't have a long career in wartime versus the Enterprise and the hangars obviously didn't inspire Navy photographers, fortunately "Life" magazine took some nice ones.

 

I finally got the green light to glue the front block to the hangar. Periodically I put the whole thing on the hull to check that there are no deformations at the level of the recesses between the two, so as not to have any bad surprises, and the same goes for the flight deck... It would be too complicated later on to correct certain errors.

 

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I'm just adding to it. 

 

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Mighty impressive work here! I built Trumpies 1/350 Hornet when it first came out, so I recognise a lot of things but even more things that I missed.

I'll be following your build with interest if that is okay,

 

Pat

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Thanks Jamie, Werner, Guy, Pat, and many others!
 

@Jamie, i never used this program or a 3D program until last month. But I love computers, it’s was a part of my job on merchand ships. 


Slowly backwards, but the work goes forward! 

 

I messed up a bit yesterday when I put my structural reinforcements from the flight deck into the forward garage. I'm beginning to understand the philosophy behind this hangar ceiling, which is heavily loaded with all kinds of scrap metal... It's better, as there are still tens of metres to go to the stern and a mistake made at the bow will be difficult to make up for later. 
 

We see surrounded in red one of the main couples supporting the flight deck, there is another support at the level of the bomb lifts. We see it on the green picture, bolted to the ground. Its shape is nice to make.

 

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I made this beautiful masterpiece very wide, it brings a lot to the details of the hangar, there will be others more back to design.

 

It was necessary to glue the bulkheads before installing this piece. The pt and sb housings are still removable, to install the LED wiring. I already passed the main wires to Sb.

 

I started to take care of the central block under the island. I've done the shafts for the two bomb elevators. They open up to the front of the island at Portside . Unfortunately their location, which seems correct on the flight deck, does not correspond to their location in the central block, there is a big discrepancy.

 

I wanted to represent an open hatch on the deck with the arrival of the bombs. That won't be possible. Nothing sticks. and it is too complicated to rectify, at the flight deck level (think of the wooden deck), or at least complicated at the central block level, but not much better. So I don't touch anything.

 

So the scene will look like this after some reflection:

 

Flight deck, one of the two elevator hatches open, the stage is flush with the bridge loaded with the bomb.
 

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We see on this capture of the film shot on the Hornet, the two elevator hatches. The hatches are opened with foam hoists, it's not hydraulic apparently. I discovered thanks to this film, the usefulness of these two hoists that I had seen on other photos well before.

 

 

 

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The photo in question.

 

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Hangar: When you remove the bridge, you will see one or two elevator platforms at different heights loaded with B-25 bombs.


So I designed the two elevator shafts, cut out the flight deck, and the roof of the central block of the hangar to insert the two shafts properly.


I would have other inserts to make more on the back of the block for the machine ventilation and the chimney pipes that we will be able to see the deck once removed. Beautiful parts in perspective! 

 

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On the central block, I "gummed" on the central partition all the existing reliefs, pipes etc... to place scratch.

 

My progression is similar to that of a tunnel boring machine, I dig the tunnel, I lay the concrete plates, the accessories, then the rails... :D and so on towards the back.

 

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I'm working on the chimneys of the nine boilers. There are 3 of lesser capacity on the aft, so the rear exhaust pipe is smaller than the two other.

I don't represent the ventilation casings of the different machine compartments.

 

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Here is the 3D creation process, step by step, of the different objects that will compose this part of the central block.

 

First I make a 2D sketch of the platform that will replace the part I cut out of the block. 

 

It allows me to place the different dimensions of the openings to be created.

 

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After I extrude this drawing to the thickness of the plastic of the block, I now have a good base to start with.

 

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I do the same on the sketch for the partitions of the casing.

 

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I extrude the 4 walls up to the height of the elbow, as the chimney flue runs at an angle of 60° at one point.So I have to plan the next step...

 

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As the three are identical, I'm focusing on this first one to finish it completely, I'll do a copy/paste later. 

 

I'm working on the vertical wall stiffeners.

 

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That I extrude too.

 

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Then the horizontals, 5.

 

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Then we do copy and paste, it goes fast.

 

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I create the first exhaust pipe, it is surrounded by insulation, probably asbestos at the time, confined with thin sheet metal. It's not done like that anymore of course, nowadays, we mainly use rock wool which resists well to high temperatures.

 

A bit like here on the exhaust outlet of the single turbocharger of this 14000 HP 2-stroke Burmeister B&W engine, the part with a larger diameter contains the expansion bellows with its mounting flanges. Personal photos.

 

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Creation of the pipe, then its flange.

 

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I make the pipe in two pieces that will fit together. Because it has to be easy to mount all this and above all it has to be painted in different colours. You always have to think about painting.

 

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I extrude all this but by bending the shapes along a very precise axis and angle, that of the block.

 

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I draw a construction line that will give me the position of the hangar floor thanks to the dimension in relation to the ceiling of the block, that's where I have to cut the casing and the pipe.

 

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From there, I create a rectangular shape which will be used as a digital cutter, I will extrude this shape but in negative, all that will pass in its field will disappear, hence the red.

 

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Well, that's almost done for this part. The pipe anchors still have to be installed in relation to the casing.

 

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That's it, there's still the smallest pipe left to create and position in place.

 

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I make a copy and put it in the front slot.

 

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No need to rebuild a pipe, I reduce the size of the big one and adapt the junction with the shed floor.

 

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This time the module is complete, all the elements have to be saved in a .STL file in order to print them separately. Because each element will require a specific treatment for printing in terms of support.

 

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The printing plate is well filled, the reinforcing brackets are in place. 

 

We'll see the result in 3 hours...

 

Screenshot-2020-06-09-12-43-13-701.jpg

 

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Thanks, guys, that gives courage! 😅

 

It's not too bad, I had to re-drill the holes a bit because it's very small, with a 0.3 mm drill bit.

 

There is still the white paint to apply inside the ducts, white slightly yellowed compared to the white of the garage because of the heat.

 

I continued to furnish the central block, including the bomb and torpedo lift. There is the spare propeller rack to be created as well. 

 

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A good part of this block and the details I have added will not show because there is a garage ceiling accommodation on this level, they will be represented, cabins, offices, pilot briefing room, Admiral's cabin, Master's cabin etc..

 

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The platform for the bomb lift we had to create. I couldn't find any pictures of that place.

 

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The bomb cart is supplied in PE in the kit. 2 bombs of 725 kgs (1600 pound).

 

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Last night, I attacked the spare propeller rack, and the "Conflagration and hangar control station", a kind of control tower of the hangar and which probably also serves as a shelter with two portholes to see what happens there in case of fire, explosion etc... 

 

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3D creation, I added bolting to the explosion-proof portholes...

 

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Today, I did the printing of the "control tower" of the hangar, and the structural reinforcement at the corner of the central block. I also put in a rail to support the stored propellers, you can see it on the picture of the Wildcat being serviced on the Enterprise CV-6, it's not laid out the same way as on the Hornet. 

 

The block is almost finished on the hangar side, I'll be able to paint it quickly and take care of the outside facade, then the other side.

 

I made fuel hoses, probably spare ones, which are spread out on one of the pass of the block above the propellers, you can see them on the pictures. 

 

This is the recommended way to store them, we avoid coiling them to avoid stressing the steel frame and the rubber canvas. It is important to know that these hoses have an electrical continuity, that is to say that between the two quick connections, there is a wire that connects them electrically. This continuity must be checked periodically, and is annotated in a hose register in ohms.

 

The reason for this system is to avoid micro sparks of static electricity (liquids flowing through a hose make them) and therefore explosions especially with vapours of light fuels, GO, aviation gasoline, kerosene, when the fuel/fuel percentage conditions are met.  

 

I started to glue the leds on the lattice beams of the ceiling. Welding tonight.

 

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The famous hoses.

 

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8 hours ago, Iceman 29 said:

I made fuel hoses, probably spare ones, which are spread out on one of the pass of the block above the propellers, you can see them on the pictures. 

 

This is the recommended way to store them, we avoid coiling them to avoid stressing the steel frame and the rubber canvas. It is important to know that these hoses have an electrical continuity, that is to say that between the two quick connections, there is a wire that connects them electrically. This continuity must be checked periodically, and is annotated in a hose register in ohms.

 

The reason for this system is to avoid micro sparks of static electricity (liquids flowing through a hose make them) and therefore explosions especially with vapours of light fuels, GO, aviation gasoline, kerosene, when the fuel/fuel percentage conditions are met.  

 

Screenshot-2020-06-11-20-57-07-537.jpg

I would say "awesome" but I don't think that quite describes the standard of your model building.

 

Would the fuel hoses be used when the ship was undertaking Replenishment at Sea/Underway Replenishment operations ?

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Yes, bunkering is one of the most important logistic parts.

 

https://www.wearethemighty.com/uss-neosho?rebelltitem=2#rebelltitem2

 

USS Neosho (AO 23) refuels the carrier USS Yorktown (CV 5) before the Battle of the Coral Sea. (U.S. Navy)

img.jpg?width=980

 

Hornet, bunkering hoses on starboard side.

 

Screenshot-2020-06-12-11-31-05-005.jpg

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Some pictures of the painting of the central block. I pulled up the propeller rack when I saw a picture taken from another angle.

I had made a mistake.

 

Exterior bulkhead of the central block, we're just at the beginning of the detailing.


Screenshot-2020-06-13-00-56-23-463.jpg 

 

The central block is finished, maybe there are still some micro-decals to put.

 

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I've been busy, this outer bulkhead has been a lot of work for me. It was fun to mount.

Putting up some decals:

 

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Exterior wall of the hangar under the island. 

 

Manufacture of the small workshop that seems to be behind the curtains. 

 

I let myself go on the details, it always gives me more experience for Fusion 360.

 

I installed lighting, it was worth it.

 

I made two  warping drum for the winch that is on the bulkhead. These winches are used to handle the overboard refueling hose.

 

I had to add IPNs to fix the hose, as it is normally fixed to the flight deck, but as it will be removable, I had to find an alternative solution.

 

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Manufacture of sea refuelling hose supports. Nothing is provided except the hose, nor explained...

 

Screenshot-2020-06-15-17-13-49-135.jpg

 

 

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This evening,  I took care of the supply hose, I had free time as there is nothing on the Merit notice nor on the MK1 Design doc.

 

Luckily the two HD pictures taken in Portsmouth, USA, in February 1942 are really exceptional in quality, a little too much shadow because of the sun maybe, but by processing the image we can see some very interesting things.

 

The hoists are equipped with ropes and not with steel cables, it is certainly intended, it must be able to fuse quickly in case of untimely separation of the ships or something that goes wrong. 

 

The aircraft carrier can also refuel other ships if needed. But when a tanker comes for bunkering, it's its equipment that's used.

 

"Raid Doolittle, fleet resupply operations, 1942. World War II.

 

Fleet of U.S. ships en route in the Pacific Ocean to launch the Doolittle bombing raid on Tokyo, Japan, at the beginning of World War II. 

This plan focuses on the Fleet Oiler, USS Sabine, AO-25 and the USS Enterprise, CV-6. 

From 01:38 to 01:44, the destroyer USS Benham, DD-397, is seen to starboard of the USS Sabine.

From 02:15 to 02:20, the fleet tanker USS Cimarron, AO-22, refuelling the heavy cruiser USS Northampton, CA-26 with a destroyer and the aircraft carrier USS Hornet, CV-8 in the background. 

From time to time, between 0222 and 0245 hours, the tanker USS Cimarron, AO-22, approaches the USS Enterprise. 

Location: Pacific Ocean. Date: 1942."

 

 


 

https://www.wearethemighty.com/uss-neosho?rebelltitem=2#rebelltitem2

 

The USS Neosho (AO 23) supplying the USS Yorktown (CV 5) during the Battle of the Coral Sea. (U.S. Navy).

 

https://www.wearethemighty.com/uss-neosho?rebelltitem=2#rebelltitem2

 

You can see on this picture that the main crane behind the island is used.

 

img.jpg?width=980

 

Being at the machine during my military service on a destroyer (D628 Vauquelin http://www.netmarine.net/bat/ee/vauqueli/index.htm )  in the early 80's, I took part in this kind of exercise on the deck, it's impressive. The chaplain was often lugged from ship to ship in this manner as well, I think he had to pray and rely on God during the short crossing. 

 

The equipment is much performant to day:

 

 

Missing pieces once printed.

 

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I added a 200 liters drum in the workshop.

 

Screenshot-2020-06-15-22-54-53-918.jpg

 

The EZ line ends will be tighter once the deck is placed on the hull, with the hose moored to the rail. This is not possible at the moment.

 

I've tucked a copper wire into the black hose so that I can shape it perfectly to my liking and give it the right shape, otherwise it's impossible.

 

Screenshot-2020-06-15-22-56-08-059.jpg

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