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Re: long lance motor details
Posted by: ROBERT M. ()
Date: July 23, 2007 05:16AM

Harry:

The Long Lance Type 93 used compressed oxygen instead of compressed air for its
propulsion oxidizer, feeding this into an otherwise normal wet-heater engine. Air
is only about 21% oxygen, so a torpedo using compressed oxygen instead of air would
hold about five times as much oxidizer in the same size tank. This meant that the
torpedo could travel further and faster. Additionally, uncombusted normal air, principally nitrogen, bubbled to the surface and left a trail pointing back at the
launcher. With oxygen, the gas was almost completely burned and left an almost
invisible bubble trail.

The battery-powered torpedoes of the U-505 in Chicago are of the lead-acid type.
Seawater batteries came after WWII.

Later,

ROBERT M.

Options: Reply•Quote


Subject Written By Posted
long lance motor details harry edwards 07/22/2007 02:37PM
Re: long lance motor details ROBERT M. 07/23/2007 05:16AM
Re: long lance motor details DanOdenweller 07/24/2007 03:56PM
Re: long lance motor details ROBERT M. 07/30/2007 06:20AM
Re: long lance motor details Walter Schmidt 07/24/2007 02:01AM
Re: long lance motor details Forest 07/30/2007 04:33AM
Re: long lance motor details Forest 07/30/2007 05:14AM


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