From mint-bounce@lists.fishpool.fi Sat May 29 07:29:02 2010 To: From: Peter Slegg Subject: Re: [MiNT] 4.4 litre tanks Reply-To: Peter Slegg X-Mailer: MyMAIL Rev:1.94-08.13813 (Atari/(STiK/STinG/GlueSTiK)) X-Hardware: Atari Milan MIME-Version: 1.0 Date: Sat, 29 May 2010 12:26:07 +0000 (GMT) Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal Message-Id: <000626e9.01a94e9eaedf@smtp.freeola.net> X-ecartis-version: Ecartis v1.0.0 Sender: mint-bounce@lists.fishpool.fi Errors-to: mint-bounce@lists.fishpool.fi X-original-sender: p.slegg@scubadivers.co.uk Precedence: bulk List-help: List-unsubscribe: List-Id: X-List-ID: List-subscribe: List-owner: List-post: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.sparemint.org id o4TBT2cw003639 Looking at the theoretical buoyancy change of these 4.4x200 tanks compared to a steel 3x232: ali 4.4 200b = -1.45lb full to +0.42lb at 50bar steel 3 232b = -2.3lb full to -0.74lb at 50bar So the buoyancy change is less for the ali tanks and they are a less negative when full. They won't be pure Al so they might not quite match these figures. Peter