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Re: [PSUBS-MAILIST] I new here, I need advice
Hi Thomas!
Displacement: volume (in square inch) X 0.0361 (weight of one square inch of
water in lb).
So a sub of 24 inch X 24 inch X 72 inch =
24 x 24 x 72 x 0.0361= 1497 lbs.
This is the weight you need to dive.
Pierre
>From: "Thomas C. Brown" <tombro77@optonline.net>
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: [PSUBS-MAILIST] I new here, I need advice
>Date: Fri, 28 Feb 2003 14:44:17 -0500
>
>Hello my name is Thomas Brown from NYC.
>
> I have the desire to make a small 1 man submarine out of
>wood with a depth of max 10feet. Basically just to see if I can make it
>and to test my skills. My interest in submarines comes from a desire to
>join the Navy and serve in a submarine and also to pursue a degree in
>Naval Archeitechure. I figured out mostly everything from rudder
>control,ballast control(I was going to use a water bladder in a
>compartment,I would use 2 pumps; 1 to pump in and sink, the other to
>pump out and rise.)the total weight of the sub will probably be no more
>that 100-150lbs and I weigh 200lbs so a total of 300-350lbs when im in
>it. I went over costs and this shouldn’t cost more than $350 USD. 2x4
>wood frame, with plywood hull. I will caulk inside and out to
>waterproof, and on the outside I was going to epoxy for further
>strength. I planned to have ¼” thick plexi glass windows. My Main
>problem is how to figure out the displacement of it, so I know whether
>or not I will be able to dive and surface. Please take into
>consideration that this is a plywood(no curves, flat edges) submarine
>being made by a 17 year old(with an excellent understanding of science
>and submarines.) I want my normal depth when im under the water to be
>5-7 feet. Please tell me how to figure displacement, if this will work,
>and how many hp electric engine should I expect to need to propel an
>350lbs submarine 2knts with a depth of 7 feet.
>
>
>Thank you for your time.
>
>
>
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