Underwater launch of a 300mm Wurfkörper 42 Spreng from Type XIC U-Boat U-511 during trials in the Summer of 1942

Underwater launch of a 300mm Wurfkörper 42 Spreng from Type XIC U-Boat U-511 during trials in the Summer of 1942. The reason U-511 was chosen was due to the fact that her skipper at the time, Kptlt. Friedrich Steinhoff, was the brother of scientist Dr. Ernest A. Steinhoff, the latter later “Paperclipped” to the U.S. Army after the war and passed at Alamogordo, New Mexico after a long career in rocket development for the Pentagon. A park on Holloman AFB is named after him.

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