UFO underwater???

Old 01-28-2020, 07:56 AM
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Default UFO underwater???
Old 01-28-2020, 08:01 AM
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Cool, 2 or 4 stroke and what prop they running.
Old 01-28-2020, 08:12 AM
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It would be a USO at that point. That craft and the encounters around it is pretty well documented and pretty well hushed.
Old 01-28-2020, 08:54 AM
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Originally Posted by bugnut View Post
Cool, 2 or 4 stroke and what prop they running.
wonder what kind of prop slip numbers they are seeing?
Old 01-28-2020, 09:19 AM
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Supercavitating torpedoes exist.

E.g. the Russian Shkval: "The VA-111 is launched from 533 mm torpedo tubes at 50 knots (93 km/h) before its solid-fuel rocket ignites and propels it to speeds of 200 knots (370 km/h). Some reports indicate that speeds of 250+ knots may be achieved, and that work on a 300-knot (560 km/h) version was underway. This high speed is due to supercavitation, whereby a gas bubble, which envelops the torpedo, is created by outward deflection of water by its specially-shaped nose cone and the expansion of gases from its engine. This minimizes water contact with the torpedo, significantly reducing drag." (Wiki)

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