AFter looking at picture 2, I have another conern.
The length of both the main and variable ballast tanks can give you lognitudual stability problems. True if the main ballast tank is completely full or empty of water then everything will be fine. The problems occur during the transistion between the two. Half full the water will slosh forwards and backwards. Making the bow and stern alternatively bouyant. Or possibly the air bubble will just set on one end.
These tanks will at a minimum need baffling. Or better yet be divided into individual tanks.
Regards,
Ray
--- On Wed, 8/6/08, skrewgun007@aim.com <skrewgun007@aim.com> wrote:
From: skrewgun007@aim.com <skrewgun007@aim.com>
Subject: Re: [PSUBS-MAILIST] the half pipe returns!
To: personal_submersibles@psubs.org
Date: Wednesday, August 6, 2008, 2:55 PMI am ready to resume my half pipe plans
remember these?
they are up for revision. using the same ballast sys but only one con tower and mini kota motors for multi directional controls. also allowing for viewing front and rear. any info on cost of large acrilic view ports like the dome ones used on conning towers. my plans have been set back but now have purpose. I have 10-13 for completion. say hello to the latest creation.