[PSUBS-MAILIST] All done for now

[hank pronk via Personal_Submersibles]

I don’t like the idea at all. I need to do some pool testing. Maybe I can move some ballast weight to the hull to lighten the chassis. 

Sent from my iPhone

> On Jul 25, 2020, at 12:09 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> I'd be careful with that. Per ABS, inverted surfacing is not permitted, and you need to be able to egress. Coming up right under the boat is probably pretty unlikely.
> 
> Sean
> 
> -------- Original Message --------
> On Jul. 25, 2020, 11:49, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote:
> 
> Sean, thank you, you have a very good eye.  A gusset is a good idea-I was just lazy and figured the tube its welded to is pretty heavy duty.
> The chassis is jettisoning and is operated by rotating a through hull shaft.  Given the limited space and the fact that the mechanism is behind the seat-there is a permanent 1\2 inch drive ratchet connected to the rotating release.  The sub will loose about 500 lbs, but it could be more.  I have to put it back in the pool to re-load weight.  I am worried the sub will come up inverted when the chassis is dropped.  The good thing is, if I impact with the Landing Craft from dropping the chassis , it will hit the bottom of the sphere not the acrylic cylinder.
> Hank
> 
> 
> On Saturday, July 25, 2020, 8:33:02 AM MDT, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Great video Hank. One thing that stands out as a potential problem though, are the tabs that the bumper stops are mounted to on your swinging ballast tanks. Given their size and orientation, it looks like the base welds there might be subject to a fair bit of force, and cycling (fatigue inducing) at that. I might be inclined to weld in some sort of webs or gussets to stiffen those tabs.
> 
> Also, you mention that the skids can be jettisoned. Can you elaborate on how that works? Do you become severely positively buoyant when that happens?
> 
> Sean
> 
> 
> 
> 
> -------- Original Message --------
> On Jul. 25, 2020, 06:11, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote:
> 
> 
> 	
> Finished Homemade Submarine Full Tour
> 
> 
> My new sub is ready for manned dives.  I am waiting for prop guards, but other than that-I am calling it ready to go.
> Hank
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