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GlassTrain · 01-01-10, 05:13 PM

U-72 (Type VIIC) lost with all hands..... December, 1942 in BE36.

Crash dove to 60m while being chased by one fast destroyer during convoy surface attack. Managed to get to 200 meters and almost shook him by hooking back under. Then, the boat wouldn't keep it's depth unless over 1kt. Blow ballast and tried to reset depth to no avail. Destroyer hears boat and several others from the convoy arrive to join in the destruction. After jukin' and jivin' for forty five minutes, one very well placed spread opens up the rear crew quarters and engine room. Blow ballast! Heavy flooding and boat continues past 230m. Pressure hull rapidly imploding..... 338m and boat finally collapses.... no survivors.

U-72 was the longest lasting career in a long time.

Usually, I use the dive command, or just set the depth without giving any emergency dive order. The boat always comes to the correct depth and 1/2kt is enough to keep level. After testing with a new boat, it's unable to keep it's depth if a deeper one is commanded after the order to crash dive is given. So, I'm going to reset the crash dive depth to 200m (from 60m) and see if it keeps level then.

01-01-10, 05:13 PM	#604
GlassTrain Watch Join Date: Aug 2005 Location: Peoria, IL U.S.A. Posts: 25 Downloads: 18 Uploads: 0	U-72 (Type VIIC) lost with all hands..... December, 1942 in BE36. Crash dove to 60m while being chased by one fast destroyer during convoy surface attack. Managed to get to 200 meters and almost shook him by hooking back under. Then, the boat wouldn't keep it's depth unless over 1kt. Blow ballast and tried to reset depth to no avail. Destroyer hears boat and several others from the convoy arrive to join in the destruction. After jukin' and jivin' for forty five minutes, one very well placed spread opens up the rear crew quarters and engine room. Blow ballast! Heavy flooding and boat continues past 230m. Pressure hull rapidly imploding..... 338m and boat finally collapses.... no survivors. U-72 was the longest lasting career in a long time. Usually, I use the dive command, or just set the depth without giving any emergency dive order. The boat always comes to the correct depth and 1/2kt is enough to keep level. After testing with a new boat, it's unable to keep it's depth if a deeper one is commanded after the order to crash dive is given. So, I'm going to reset the crash dive depth to 200m (from 60m) and see if it keeps level then.