Re: [PSUBS-MAILIST] what is the diference k250- k600

["DAVID A HAVERBERG" <carro@wans.net>]

Was it  K-350 or  K-600 that went to 900 feet for four hours?
----- Original Message -----
From: <VBra676539@aol.com>
To: <personal_submersibles@psubs.org>
Sent: Monday, May 13, 2002 1:21 AM
Subject: Re: [PSUBS-MAILIST] what is the diference k250- k600


> Ian, The shells are elliptical and the calculations used are for the major
> radius, making it appear to be a much larger sphere. ABS insisted on 9/16"
> for the K-600 for instance, although no one thought it was necessary. The
sub
> went to 900 feet in the test tank and soaked four hours without distortion
or
> damage, so it definitely worked. Best Regards, Vance