Quote:
Originally Posted by Piotrsko
Vortices make sonar reflections. Bad juju in sub warfare. I suspect they are anti vortex.
|
Anti-cavitation as well. Collapsing water vapor bubbles shed from a propulsor would have a horrific acoustic signature.
It escalated the Vietnam War, when the electronics officer aboard the U.S.S. Vincennes detected the sound of his own screws, and it was reported to Washington D.C. as a hostile torpedo attack from N. Vietnam.
All Lyndon Johnson needed.