2007-02-27 15:01:18 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
what about incasing it in an air bubble?
2007-02-27 15:08:26 · update #1
Oil is lighter than water, so it would float off the ship's hull... and leave a noticeable oil slick on the surface that could be used to track the sub. (The whole point of using a sub is to remain undetected.)
As far as encasing the sub in an air bubble, this is actually a real technology, but currently only for some torpedoes. It's called super cavitation. When an object moves fast enough through the water (maybe 100 kts), the water in front of the vessel is vaporized into steam. The vessel is therefore flying more than swimming. The drag is greatly reduced allowing the vessel to maintain the high rate of speed.
Modern torpedoes use active sonar to home in on their targets. A torpedo using this technology would be much too loud to use sonar, so it's pretty much only useful for a nuclear-tipped torpedo that only has to get close before exploding.
2007-03-02 10:23:55 · answer #1 · answered by weglian 1 · 0⤊ 0⤋
Actually, making the surface as smooth as possible while making the submarine shaped like a teardrop has proven to be the best design. Good engine design doesn't hurt either. Propeller design has come a long way since the early days. They found that using more blades and curving them like a boomerang cuts down on cavitation so they can spin faster. Yes, I served on a Trident (Ohio-class) submarine for 4 years.
2007-02-27 23:14:58 · answer #2 · answered by sigmus61 2 · 1⤊ 0⤋
This really depends on the actual surface area of the hull itself. If the hull is smooth and shaped correctly, then I would say that any coating would help it along. It also depends on the material.
Oil would help but the trouble is keeping it on the hull...
2007-02-27 23:19:27 · answer #3 · answered by tito_swave 4 · 0⤊ 0⤋
No. The oily film would slide off and float on the surface. But, the oil could make it float better but only by a small margin.
2007-02-27 23:09:37 · answer #4 · answered by jrodh8 5 · 0⤊ 0⤋
If the candle light is just right, and the wine is good,the submarine should submerge and surface as rapidly as necessary or until the torpedo fires,then the submarine will surface slowly.
2007-02-27 23:13:34 · answer #5 · answered by JALISCO 2 · 0⤊ 1⤋
Maybe, but it would wash off quickly.
I think using a slick surfaced paint would yield better results.
2007-02-27 23:07:03 · answer #6 · answered by netthiefx 5 · 0⤊ 0⤋
no because the oil wouldnt mix with the water and the sub would float
2007-02-27 23:09:44 · answer #7 · answered by shane w 1 · 2⤊ 0⤋