 | Album: German Submarines
Image: 305 / 473
Date: 2010-04-15 15:58:21
Tags: Bremerhaven, Germany, Submarines, Type XXI, U 2540 Frogman Sluice
This sluice enabled the frogmen to leave the submarine down to 20 m depth of water. For this purpose they got from below into the chamber, which then was shut and flooded. After pressure equalizing the frogmen could leave the submarine through the escape tower in the hull and return on the say way. The sluice was also equipped with a speak-and-call system (voice transmitter and loudspeaker) which enabled a communication between ship's crew and frogmen. Exposure Time: 1/60
Aperture: f/4.0
Sensitivity: 100 ISO
Focal Length: 24 mm
Make: Canon
Model: Canon EOS 40D
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