speed150mph
07-31-21, 05:56 PM
So I started playing again after a long hiatus. I’m in the costal waters campaign in 1939. I’m crawling along at 3 knots in silent running, depth 100 meters trying to avoid detection. I’ve got a warship of some description off my starboard beam, bearing 077 medium speed, moving away estimated range about 5500 meters.
Listening to the hydrophone I can hear the constant chugging swishing noise of the screw, but every now and then I can hear a humming drone coming from the same bearing, almost sounds like a lawn mower sound or aircraft engine. It comes then fades away and then repeats. There also a high pitched whistling noise as well, almost sounds like when you blow air over the mouth of a bottle. Has anyone else heard anything like this? Does anyone know what it could possibly be?
Listening to the hydrophone I can hear the constant chugging swishing noise of the screw, but every now and then I can hear a humming drone coming from the same bearing, almost sounds like a lawn mower sound or aircraft engine. It comes then fades away and then repeats. There also a high pitched whistling noise as well, almost sounds like when you blow air over the mouth of a bottle. Has anyone else heard anything like this? Does anyone know what it could possibly be?