Показать сообщение отдельно
Старый 17-04-2011, 23:20   #1571
CrazyIvan
Bugcatcher
 
Аватар для CrazyIvan
 
Регистрация: Nov 2008
Адрес: Russia Kursk City
Сообщений: 1,017
Just as any other contact will disappear which sharply will change speed and will lower own noise.

The surface ship - goes on 20 kts (having cavitation) - is well seen on BB sonar.
But will lower speed speed up to 4-5 Kts (without cavitation), and the noise will not be more on BB sonar.
CrazyIvan вне форума   Ответить с цитированием