Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
Re: Torpedo and torpedo tube dimensions
Posted by:
ROBERT M.
()
Date: November 12, 2003 06:17AM
Maciej:
You wrote: "Same as 2cm shell into 2cm AA gun : )."
Not really..... The gun projectile has a rotating band affixed near its base, and has a slightly larger diameter than the projectile itself, Its purpose has three functions. 1. Normally made of brass or copper, seals the
projectile in the bore of the gun so that the full force of the propellant gases is exerted on the projectile 2. Its larger diameter is forced into the
right-hand-twist lands and grooves of the barrel's bore. 3. Its nominal diameter along with the "bourrelet" which is affixed forward of the projectile, before the projectile's shape becomes ogival, become bearing surfaces, which steady the projectile in the gun barrel.
Trying to stuff a 53.4mm torpedo into a 53.4 mm torpedo tube, called an
'Iinterference fit", because of the lack of proper clearance between the
torpedo and the tube.
U.S. Navy torpedo tube bores are 21.125 inches in diameter, allowing
0.067-inch clearance all around the torpedo.
Thanks for the info on the internal diameter of 5.36mm.
Now I have to find info on the actual length of the torpedo tubes, so they can accomodate the 70# "floating piston" shown at:
[www.u534.coolfreepages.com]
U534_torpedoes_p7.htm
Best regards,
ROBERT M.
You wrote: "Same as 2cm shell into 2cm AA gun : )."
Not really..... The gun projectile has a rotating band affixed near its base, and has a slightly larger diameter than the projectile itself, Its purpose has three functions. 1. Normally made of brass or copper, seals the
projectile in the bore of the gun so that the full force of the propellant gases is exerted on the projectile 2. Its larger diameter is forced into the
right-hand-twist lands and grooves of the barrel's bore. 3. Its nominal diameter along with the "bourrelet" which is affixed forward of the projectile, before the projectile's shape becomes ogival, become bearing surfaces, which steady the projectile in the gun barrel.
Trying to stuff a 53.4mm torpedo into a 53.4 mm torpedo tube, called an
'Iinterference fit", because of the lack of proper clearance between the
torpedo and the tube.
U.S. Navy torpedo tube bores are 21.125 inches in diameter, allowing
0.067-inch clearance all around the torpedo.
Thanks for the info on the internal diameter of 5.36mm.
Now I have to find info on the actual length of the torpedo tubes, so they can accomodate the 70# "floating piston" shown at:
[www.u534.coolfreepages.com]
U534_torpedoes_p7.htm
Best regards,
ROBERT M.
