[PSUBS-MAILIST] inexpensive buoyancy

Alan via Personal_Submersibles personal_submersibles at psubs.org
Fri Jul 13 17:45:29 EDT 2018


Thanks Hank,
sounds good. I have always thought that that was a clever idea.
Cheers Alan


Sent from my iPad

> On 14/07/2018, at 9:31 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan,
> I forgot, yes the sub can surface with one tank flooded but not both.  The tanks are connected to the occupant sphere and the sphere  can jettison.
> Hank
> 
> On Friday, July 13, 2018, 3:22:47 PM MDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Alan,
> Yes the tanks are well protected in an aluminum frame and then covered by cowls.  There tanks are indestructible, they are mounted to cars and trucks and they are very close to new and in new condition.  I think they are close to 2 inches thick.
> Hank
> 
> On Friday, July 13, 2018, 2:54:47 PM MDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Hank,
> will they be well protected against collision?
> From memory G.L. don't want you to have any external pods that can
> cause a catastrophic situation if they fail. I.e. if your battery pod fails
> you should have a large enough drop weight to counter it.
> Did you consider going for a number of smaller cylinders, as 600lb
> flotation is a lot to counter if one was ruptured.
> Cheers Alan
> 
> 
> 
> 
> Sent from my iPad
> 
>> On 14/07/2018, at 6:09 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> 
>> Hi all,  I bought two 3,600 psi carbon fibre CNG tanks yesterday that are certified until 2032  to provide buoyancy for E3000.   I am encouraged by the use of carbon fibre in Ocean Gates new sub.  I bought them on Ebay of coarse, so I saved thousands of dollars.  I am getting 1260 lbs NET buoyancy for 1,90 dollars per lb  This increased amount of buoyancy will allow me to make E3000 a two person sub.  The added benefit will be increased stability and improved transitioning from surfaced to submerged.  The original added buoyancy requirement was 550 lbs, so you can see the benefits to having 1260 lbs to work with.
>> Hank
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