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Besides, for some time now we have seen several major kit manufacturers `exchanging`kits, repackaging them in a box of their own design, adding their own style of instructions and then putting them on the market. Revell have done this with numerous Hasegawa kits, Italeri with Kinetic kits, and so on. It´s the same in the automobile industry, with different manufacturers providing the same car to different markets under their own brand.
Giovanni,
You're correct. 933 mm = 36.732 inches X 72 =2644.72 inches/12 = 220.39
That gives a scale length of 220.39 feet for the submarine; well short of the actual 251.7 ft.
Probably just a misprint by Revell....
or....they have scaled up their old 1/230 Skipjack, with all of it's inaccuracies (and visible reactor; placed all the way in the stern)
I don´t think that´s very likely, as Revell (Germany) have released quite a number of newly tooled kits in the recent past. Even the kits they did resize were resized new toolings (their Hunter jets for example).
No, my money definitely is on this being (going to be) the Moebius kit repackaged. YESSS!
All wtc's with ballast systems are variable volume regardless on the method of taking on and expelling water- think about it. This is a piston tank system, and it's absolutely nothing like RCAB's.
looks like your twin piston would still work even without the endcaps. As the pistons move in the wtc volume decreases and expands as the piston moves out.
That system uses bellows and has two inherent drawbacks.
1. The bellows will not retract as efficiently as a piston will, therefore this system uses up more space.
2. There will always be a small amount of residual air left inside the bellows which can compress as you dive deeper. This will affect the trim of the boat somewhat.
The chief advantage of bellows is that they are easier to use if you don't have access to a lathe.
It's a piston (well, two of them)...but instead of moving water like with the Engel piston, it moves air. It creates more buoyancy by leveraging the air in the dry space to 'fill' the piston.
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