Hydrophone hunting - German U-boat counting screws

[Osmium Steele]

How would you define hydrophone?

As far as I know, it is a microphone with the proper acoustic impedance match to operate effectively underwater.

The exact composition of the hydrophone can vary widely, piezoelectric, ceramic, etc., but it is still a hydrophone. They can be omni-directional, fixed, or directional (steerable).

You may be entirely correct as I am 20 years out of the service, but I'd hate to think that I'm so far out of touch with current technology that I wouldn't be at least peripherally aware of something which has eliminated hydrophones altogether.

[JazzJR]

Originally Posted by Osmium Steele

You may be entirely correct as I am 20 years out of the service, but I'd hate to think that I'm so far out of touch with current technology that I wouldn't be at least peripherally aware of something which has eliminated hydrophones altogether.

Well in 20 years can happen a lot of progress. Submarines can stay up to three weeks submerged without exhaust heat because of the two fuel cell propulsion system (212A submarine). But as i have seen it is using a WASS Hydrophone. But i can't imagine that it is still the same as in 20 or like in the year 1939-1945.

But just look at how many Sensors a new submarine has.

Sensors:

• STN Atlas DBQS40 sonar suite:
  • TAS-3 passive low-frequency towed array sonar (deployed from sail)
  • FAS-3 passive low-, and medium-frequency hull-mounted flank array sonar
  • MOA 3070 mine detection sonar
• Periscopes:
  • Carl Zeiss SERO 14, with FLIR and optical rangefinder
  • Carl Zeiss SERO 15, with laser rangefinder
• Riva Calzoni periscope masts and snorkeling systems
• Kelvin Hughes Type 1007 I band navigation radar
• EADS FL 1800U ESM suite
• WASS hydrophones
• Avio GAUDI autopilot and hydraulic systems
• Kongsberg MSI-91 combat system

I can just tell about german submarines, since i don't know anything about american or russian subs.

And no just think you had all these things in Silent Hunter 3