Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
XVIII and XXI
Posted by: SuperKraut ()
Date: December 12, 2000 10:34PM

The XXI was based on the hull of the XVIII. The XVIII was a big Walter boat intended for high seas use, but as we know, the Walter drive was never adopted. The XVIII was to have two 6,000 HP Walter turbines which were to give it a top speed of 24 knots for 270 NM. Diesel power was two 2,000 HP MWM RS 12 V 26/34a motors. Electric power was two small creep motors.

The original idea for the electroboat concept came in winter 42/43 to Dipl. Ing. Heep, who was on loan to the Walter project as of Nov. 1942. He noted the slow progress of the Walter turbine project and asked himself what would happen if one used the extra space for the hydrogen peroxide tank to install extra batteries. He brought the idea to Oelfken who looked at it seriously in May 1943. The idea went through various channels until it got to Doenitz on June 19, 1943. Doenitz accepted the concept as a replacement for the Type IX and started the final design process for the Type XXI.

Regards,
SuperKraut

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Subject Written By Posted
type XXI power plant stuart 11/25/2000 04:19PM
RE: type XXI power plant Rod 11/25/2000 10:55PM
RE: type XXI power plant Rainer Bruns 11/25/2000 11:58PM
RE: type XXI power plant Ron C 11/26/2000 03:36PM
RE: type XXI power plant Rainer Bruns 11/26/2000 05:36PM
RE: type XXI power plant Ron C. 11/27/2000 01:38PM
RE: type XXI power plant Rainer Bruns 11/27/2000 05:57PM
RE: type XXI power plant Ron C 11/28/2000 05:14PM
RE: type XXI power plant Rainer Bruns 11/28/2000 06:39PM
RE: type XXI power plant Ron C 12/02/2000 06:23AM
Oslo Report SuperKraut 12/13/2000 10:22AM
RE: Oslo Report Rainer Bruns 12/13/2000 05:35PM
Roessler SuperKraut 12/13/2000 06:03PM
RE: Roessler Rainer Bruns 12/13/2000 08:09PM
XVIII and XXI SuperKraut 12/12/2000 10:34PM
RE: 1946 walther propulsion system Todd jett 12/05/2000 02:37AM
RE: 1946 walther propulsion system todd jett 12/06/2000 04:32AM
RE: type XXI power plant Antonio Veiga 11/26/2000 06:41PM


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