[PSUBS-MAILIST] Skadoc Battery Pod

Tue Nov 3 11:20:41 EST 2020

James.  On E3000 I have cables going from the pod to the hull.  I use home made penetrators for this.   Nice and simple
Hank

Sent from my iPhone

> On Nov 3, 2020, at 9:10 AM, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
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> 
> Thanks Guys.  
> Its just a simple faced flange with an O ring seal.  There is no step.  Agreed, the clamps are a bit over the top, but i like heavy duty.
> 
> There will be a vent somewhere.  Probably a swagelok pipe into the hull, with a valve for diving.  Thats all there is on Jodie B, just a tube into the hull with a cap you screw on for diving.   Either that or a OP valve.
> 
> Im not 100% sure how to put the power through into the hull actually.  Options are:
> 
> 1. Weld on penetrators like the K.  
> 2. Blue Globe.
> 3. Swagelok pipework through into the hull with cabling inside running through a ball valve.  In the event of a battery pod flood, pull the cables off and shut the valve.
> 4. Leave all the High Power cabling outside the hull and Blue Globe them direct to the motors.  Only low power relay connections would then be required.  I like this idea, but it wont work with the Engine generator inside.  
> 
> anyway, just thinking aloud now..
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>> On Tue, 3 Nov 2020 at 12:52, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> James, I like it, I might have extended the bracket on the tank end so the cap rests on it just so you don't have to hold the weight of the cap while you bolt it on.   Thats not going anywhere.  Nice video, seamless way to ride in the car pool lane with your buddy beside you. 
>> Hank
>> 
>> On Tuesday, November 3, 2020, 5:26:17 AM MST, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> 
>> 
>> Is that a simple faced flange, or is there a step that centers it? O-ring seal? Once it is submerged, it is subject to hydrostatic pressure and likely not going anywhere. The retention really only needs to prevent it from coming loose when surfaced or out of the water, given the weight of the end cap and design accelerations / impacts of the sub. You may also want some capability to withstand internal pressure due to e.g. battery off gassing, but that could also just be an overpressure valve. If anything, I'd say you overbuilt the clamps, but that's rarely a bad thing if you can afford the weight.
>> 
>> Sean
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>> Sent from ProtonMail mobile
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>> 
>> -------- Original Message --------
>> On Nov. 3, 2020, 03:48, James Frankland via Personal_Submersibles < personal_submersibles at psubs.org> wrote:
>> 
>> Hi All
>> 
>> I have completed the endcap on one battery pod for Skadoc.  What do you guys think?
>> 
>> I dont know if i should put a couple of tabs or something on to prevent any lateral movement?  Somehow.  Not sure how their would be, its super solid.
>> 
>> https://www.youtube.com/watch?v=vbmrD2FHveg
>> 
>> Also shameless plug for my new vlog.  Im on my way to my 1000 subscribers (where you can monetize the channel and make millions).  So far got 39 subscribers.......well, its a start.
>> 
>> regards
>> James
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