Re: [PSUBS-MAILIST] K-250 on ebay has caught my eye


The K-350 was design in part because the K-250 was consider rather 'fragile'
for serious  work application (or atleast that's how I remember Captain K's 
book).
I think it was mainly the dome, but may have also been the steel thickness. With
so much exposed glass on the dome, I'd imagine you'd want to keep the K-250
away from everything.

Ian.

-----Original Message-----
>From: ShellyDalg@aol.com
>Sent: Sep 11, 2006 5:19 PM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] K-250 on ebay has caught my eye
>
>I don't mean too thin to hold the expected pressure, but maybe a little  thin 
>if you crash into something. I've been a diver a long time and have been  
>slammed into rock walls by wave action. I imagine most psubs will be close to  
>SOMETHING at some point.( You gotta get close to see good! ) I see this sub was  

>sold today but it seems to me a thicker hull is just an added safety factor. 
>You  have to add weight to get these things to sink, so why not put some of 
>that  weight to good use ? The windows determine your maximum depth as they are 

>the  weakest point. I plan to use AS 516-70 steel at 3/8 inch thick. !/4 inch  
>calculates out OK but a little extra steel in the beginning can't hurt.
>Frank D.




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