[PSUBS-MAILIST] K-350 VBT

[Jon Wallace via Personal_Submersibles]

I think Vance is correct, around 65 pounds displacement.  Too lazy to do 
it in metric, but English units are:

3.14 x (5x5) x 14 = 1099.55 cubic inches

1728 cubic inches per cubic foot
1099.55 / 1728 = .63 cubic feet

1 cubic foot seawater = 64 pounds (ok,63.something, but 64 is close enough)
.63 * 64 = 40 pounds displacement

So there's 40 pounds displacement just for the cylinder.  Add in your 
two end caps and you get close to 65 pounds total.

Jon



On 5/11/2015 12:17 PM, James Frankland via Personal_Submersibles wrote:
> Hi Vance.
> I must be missing something.  65# ?  65 whats?
> I worked it out like this.  Unless im being stupid.  Quite possible...
> Tank shell = 10" OD x 14"
> = 254 x 355mm
> 3.14x(12.7x12.7)x35.5
> = 5725 cm3
> /1000 = 5.7 Litres
> Caps using the psubs calculator = 4.68 litres each.
> Total 15 Litres.
> 15 litres total displacement.  So that's 15 kg
> 15kg = 33lb
> Not taking into account the weight of the tank itself.
> Am I being dumb somewhere?
>
> On 11 May 2015 at 15:53, via Personal_Submersibles 
> <personal_submersibles at psubs.org 
> <mailto:personal_submersibles at psubs.org>> wrote:
>
>     Cool.
>     Thanks Vance
>     -Scott Waters
>
>         -------- Original Message --------
>         Subject: Re: [PSUBS-MAILIST] K-350 VBT
>         From: Vance Bradley via Personal_Submersibles
>         <personal_submersibles at psubs.org
>         <mailto:personal_submersibles at psubs.org>>
>         Date: Sun, May 10, 2015 11:39 pm
>         To: Personal Submersibles General Discussion
>         <personal_submersibles at psubs.org
>         <mailto:personal_submersibles at psubs.org>>
>
>         About 65#, I think.
>
>         Sent from my iPhone
>
>         On May 11, 2015, at 1:23 AM, swaters at waters-ks.com
>         <mailto:swaters at waters-ks.com> via Personal_Submersibles
>         <personal_submersibles at psubs.org
>         <mailto:personal_submersibles at psubs.org>> wrote:
>
>>         Does anyone know the amount of boyancy a K-350 VBT has when
>>         blown dry?
>>
>>         Thanks,
>>         Scott Waters
>>
>>
>>         Sent from my U.S. Cellular® Smartphone
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