Technology and Operations  
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RE: Max depth US subs
Posted by: Forest ()
Date: September 27, 2000 12:14AM

Sorry to be picky, but Tang was a Balao-class boat, not a Gato. This is significant because the Balao's were much stronger. The Balao's are often quoted as having an operational depth (test depth) of 400 feet. This would have been set at 450 feet, except for a trim pump that was copied from a German WW1 design, which could not function efficiently below 400 feet. Once the pump was replaced by a Gould centrifugal pump, McKee (an influential designer) felt the boats were safe to operate at 600 feet, but cautioned that some commanders were overconfident in thinking they could take their boats to 1000 feet.

Electric Boat and Manitowoc built Balao's with 35lb (7/8 inch) HTS steel, and these were rated for a 900-foot crush depth. Not too shabby.

Crush depth for the Gatos (9/16 inch of mild steel) was only about 500 feet, so operational depth (test depth) was held to 300 feet.

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Subject Written By Posted
Quality of submarines bernard zimmermann 09/21/2000 09:47AM
RE: Quality of submarines David W 09/21/2000 11:18PM
RE: Quality of submarines - RN vs VIIC Andrew Hetherington 09/22/2000 11:01AM
RE: nautical mile conversion AL Wellman 09/25/2000 01:24AM
RE: nautical mile conversion Andrew Hetherington 09/25/2000 07:29AM
RE: Admiralty mile AL Wellman 09/25/2000 06:13PM
RE: nautical mile conversion Steve Cooper 09/25/2000 01:15PM
RE: nautical mile conversion Andrew Hetherington 09/25/2000 03:09PM
Max depth US subs Don Baker 09/26/2000 08:54PM
RE: Max depth US subs Forest 09/27/2000 12:14AM
RE: Pressure Testing Submarine Hulls Don Baker 09/27/2000 04:42PM
Re: RE: Pressure Testing Submarine Hulls stan 06/17/2012 04:33PM
RE: Max depth US subs kurt 09/27/2000 04:34PM
RE: Max depth US subs David W 09/28/2000 01:39AM
US vs German subs Kurt 09/24/2000 09:05PM
Underwater manueverability David W 09/25/2000 11:31PM
RE: Underwater manueverability Forest 09/26/2000 01:31AM
RE: Quality of submarines bernard zimmermann 09/25/2000 10:32AM
RE: Quality of submarines kurt 09/25/2000 08:58PM
RE: Mk24 and "Cutie" Don Baker 09/26/2000 05:04AM
RE: Mk24 and "Cutie" Steve Cooper 09/26/2000 12:10PM
RE: Mk24 and "Cutie" joe brandt 09/26/2000 03:56PM
RE: Mk24 and "Cutie" Don Baker 09/26/2000 09:16PM
RE: Mk24 and "Cutie" kurt 09/26/2000 08:59PM
RE: Mk24 and Cutie Performance Don Baker 09/27/2000 08:29PM
Correction to Cutie performance Don Baker 09/28/2000 01:02AM
RE: Mk24 and Cutie Performance kurt 09/28/2000 04:07PM
RE: Hellions of the Deep Don Baker 09/30/2000 02:26PM
RE: Hellions of the Deep Forest 09/30/2000 04:22PM
TBM/TBF Avenger Don Baker 09/30/2000 06:16PM
Re: RE: Hellions of the Deep ROBERT M. 06/26/2012 06:06PM
Re: Quality of submarines Walter Schmidt 06/26/2012 03:02PM
Re: Quality of submarines ROBERT M. 06/26/2012 05:50PM
Re: Quality of submarines Walter Schmidt 06/26/2012 08:36PM
Re: Quality of submarines ROBERT M. 06/26/2012 08:52PM
Re: Quality of submarines Walter Schmidt 06/27/2012 08:46PM


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