KenV
Quote:
The vast majority of the sub hunting I did in my P-3 days used passive detection methods. I only used an active buoy once. Surface ships use active sonar far more.
Ken, I think the discussion was about radar cross section, and it was a good point to remember that submarines were indeed some of the first radar cross section reduction, aka stealth, applications. The U-480 first tested Alberich rubber tiles @1940- long before the P-3. A good many submarines were lost in WWII as they were detected by radar on ships and aircraft and even blimps, and reducing RCS on the conning tower (sail) masts, snorkels etc. was deemed important.
Acoustic detection by active and passive bouys (or ships) is an entirely differrent discussion.