Re: [PSUBS-MAILIST] Need design advice on "flying" submarine

[Ray Keefer <Ray.Keefer@ebay.sun.com>]

Hi Chris,

You need to worry about the type of batteries you use. Lead-acid batteries
might not like being rolled. The acid might leak out.

You buoyancy and center of gravity while submerged should be close to each
other for ease of doing your rolls. On the surface though you probably want
it very stable to keep from rolling over while your hatch is open.

Regards,
Ray

> From: "Henesy, Chris A." <CAHENESY@gapac.com>
> To: personal_submersibles@psubs.org
> Subject: [PSUBS-MAILIST] Need design advice on "flying" submarine
> Date: Mon, 17 Jan 2000 10:11:46 -0500
> MIME-Version: 1.0
> 
> 	My friends and I have begun preliminary design work on our psub, and
> seek some advice related to our general design idea.  Our submarine will be
> a "flying" sub, by which we mean it will be design such that it responds
> underwater as an airplane does in air.  It will be able to do rolls, and if
> the water is deep enough, loops.
> 
> 	Obviously, center of gravity and buoyancy will be important, as well
> as bolting everything in the sub down. :)  What other things do we need to
> consider and pay special attention to?  (Which might be of less concern in a
> "normal" psub.)
> 
> 	Thanks!
> 	Chris