Great data Ian, thank you much. As I recall the scratches were really light so we will see what we got once we have them out. I didn't think about them soaking up water,interesting. I used to know allot more about annealing when I was working on designs for small animal enclosures, but I'll have to dig that data out of my brain and filing cabinet and refresh. The two small view ports have a large bevel on them that would require turning them on a lathe if we need to make new ones. Having the old ones will make it easier to copy them. I have a lathe that should be able to do this for us. The basic circle can be water jet cut out of the sqare sheets here locally very quickly and for a good price.
Regards,
Brent
From: irox <irox@ix.netcom.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Great Update on the old K-250 sub in Sandpoint
Date: Tue, 6 Feb 2007 18:10:33 -0500 (EST)
>
>Sounds great! If you are planning of operating it again you will want to replace the
>viewports with new ones. Any damage (scratches) to them will seriously reduce
>there strength. If they wheren't scratched, you might get a way with re-heat treating
>them. You'd probably need to do a shrink cycle (they will have soaked up lots of
>water by now) and an aneiling(sp?) cycle.
>
>Good luck and keep us posted!
>
>Cheers,
> Ian.
>