[PSUBS-MAILIST] Gamma needs a diet

[Sean T. Stevenson via Personal_Submersibles]

There's always the not-so-easy but very elegant solution of syntactic
foam filled hydrodynamic fairings.  Go bigger than you need to
accommodate future expansion, and compensate in the meantime with keel
weight.  Would improve stability, too.

Sean


On 2014-05-15 18:51, hank pronk via Personal_Submersibles wrote:
> Alan,
> That would work but I want to keep the sub clean on the outside.  Gamma is very slippery the way it is.  I am confident I can shed the weight.  I have been weighing all the bits and it looks doable.  I am also looking at a winter project for Gamma.  I would like to have the arm, and valve and a couple of positioning  thrusters on a common chassis, like the DW's.  I could reduce the weight of the lead drop weight because the entire assembly would be the drop weight.  That also solves the weight problem from the batteries.  I would use the original drop weight screw to drop the new assembly.
> Hank
> --------------------------------------------
> On Thu, 5/15/14, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>  Subject: Re: [PSUBS-MAILIST] Gamma needs a diet
>  To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
>  Received: Thursday, May 15, 2014, 8:17 PM
>  
>  Hank,a
>  simple solution would be to just have a
>  number of floats like Alec's Snoopy.He
>  has them in a tube, but if the floats had attachment holes
>  you couldtether
>  them & clip them on or off.Alan
>  
>        
>   From: hank pronk via
>  Personal_Submersibles
>  <personal_submersibles at psubs.org>
>   To:
>  personal_submersibles at psubs.org 
>   Sent: Friday,
>  May 16, 2014 12:04 PM
>   Subject:
>  [PSUBS-MAILIST] Gamma needs a diet
>     
>  Gamma or the pilot needs to go to Jenny Craig.  My new
>  AGM batteries weigh 73 lbs each and Gamma has a 60 to 65 lb
>  weight budget, per battery. That means Gamma needs to shed
>  some lbs before I can take a passenger.  I can switch
>  to aluminum scuba tanks, not sure the weight saving
>  there.  I can make an aluminum rudder and a few other
>  parts also.
>  Hank
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