General Discussions  
This is the place to discuss general issues related to the U-boat war or the war at sea in WWII. 
RE: Diesel engines
Posted by: Steve Cooper ()
Date: April 30, 2001 11:58AM

<HTML>From the USS Pompanito web site [www.maritime.org]

\"DIESEL ENGINES: Four main Fairbanks-Morse 10-cylinder opposed piston 38D - 8 & 1/8\" two-cycle diesel engines. Opposed piston engines have two pistons arranged in opposite positions in each cylinder connected to crank shafts at the top and bottom of the engine. As the pistons travel toward each other they compress the air between them. At their closest point the space becomes a combustion chamber as fuel is injected. The resultant expansion caused by combustion pushes the pistons apart which causes the crank shafts to rotate. The upper and lower crank shafts are connected by a vertical drive gear. The main engines produced 1,600 horsepower at 720 rpm, and 1,280 at 650 rpm.\"

These were the better engines used in the US boats. At the start of the war, a number of boats were built with a US built variant of the German M.A.N. engines, which were given the unfortunate acronym, H.O.R. The boats were, of course, known as HOR boats. (For the non-English, HOR would be pronounced as Whore\" The HOR engines were a disaster and all boats had the engines changed during the war.

2-cycle engines do not necessarily use more fuel. Cummings has made popular 2-cycle, super-charged truck engines for decades.


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Subject Written By Posted
Terrific Submarine weekend Kris 04/29/2001 05:59PM
RE: Terrific Submarine weekend Steve Cooper 04/29/2001 09:40PM
Diesel engines SuperKraut 04/30/2001 05:49AM
RE: Diesel engines Steve Cooper 04/30/2001 11:58AM
That\'s the one! Kris 04/30/2001 12:18PM
Not quite Steve Cooper 04/30/2001 03:46PM
RE: 2 cycles? Joe Brennan 05/01/2001 07:21AM
RE: 2 cycles? Tom Iwanski 05/01/2001 12:18PM
RE: 2 cycles? Eric Goethel 05/01/2001 08:42PM
RE: Fairbank Morse Joe Brennan 05/02/2001 06:01AM
RE: Diesel engines Rainer Bruns 04/30/2001 08:30PM
RE: Diesel engines Tom Iwanski 04/30/2001 09:32PM
RE: Diesel engines Rainer Bruns 05/01/2001 01:23AM
RE: Diesel engines Steve Cooper 05/01/2001 12:10PM
RE: Diesel engines Rainer Bruns 05/01/2001 02:12PM
RE: Diesel engines Steve Cooper 05/01/2001 06:12PM
RE: Diesel engines Rainer Bruns 05/01/2001 08:17PM
RE: Diesel engines Tom Iwanski 05/01/2001 08:56PM
RE: Diesel engines SuperKraut 05/01/2001 07:52PM
RE: Diesel engines Eric Goethel 05/01/2001 08:57PM
RE: Diesel engines Tom Iwanski 05/01/2001 09:12PM
RE: Diesel engines Rainer Bruns 05/01/2001 11:49PM
RE: Diesel engines Tom Iwanski 05/02/2001 12:50PM
RE: Diesel engines Rainer Bruns 05/02/2001 03:07PM
RE: Diesel engines John R. 05/02/2001 01:29PM
Fuel prices SuperKraut 05/03/2001 07:10AM
RE: Diesel engines Tom Iwanski 04/30/2001 12:29PM
RE: Terrific Submarine weekend Sean 04/30/2001 12:43PM
RE: Terrific Submarine weekend Frank Blazich 05/01/2001 11:24AM
RE: Terrific Submarine weekend Sean 05/03/2001 12:57PM
RE: Terrific Submarine weekend Angela 04/30/2001 11:42PM
RE: Terrific Submarine weekend Rainer Bruns 05/01/2001 12:39AM
RE: Terrific Submarine weekend Kris 05/01/2001 03:16PM


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