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[PSUBS-MAILIST] Collapsible Amas and Saddle Tanks





Hey Glen,

Sounds like we are on the same chapter.  I've been working on designs for collapsible MBT's for a couple of years now. It started out with a need to conceal inflatable saddle tanks under spring loaded side panels that would simply open when the saddle tanks were inflated.  Now I working on the design for my KLH-500 inflatable amas to collapse into the narrow aluminum standing deck that runs above them. The design currently has a aluminum or UHMW cover panel that mirrors the profile shape of the said ama decks, and is attached to those  said decks with a UHMW spring loaded hinge means, that is attached to the inboard side of said decks. There is then a number of nylon, seat belt type bands, that go around the inflatable amas and feed into a spring loaded spool. This way as the amas are deflated with either just opening up the valves with a light spring loaded check valve on it and letting the air out of the MBT's as you would for a normal dive, a mini cordless wet dry shop vac, or a pneumatic powered vacuum generator, the lower cover panel will just close up below said upper deck and hold in the inflatable ama.

The other issue I'm currently working on, is that I might need to move the amas out further from the hull then I had first planned. To allow more room between the amas and the hull for the side thrusters water flow when they are operating in a vertical fashion.  This might very well put me to wide to trailer the sub, unless I make the be able to hinge up of down towards the subs axis.  I also may wish for them to hinge down to make the sub have more freeboard for easier launching and recovery by a more standard trailer.

Having a floating trailer, configured as I've spoke of in the past would take care of the latter issue.

SEAmagine has being using the inflatable amas configuration for some time now with great success. 








On a side note many of the SEAmagine acrylic pressure hulls have a FOS of 7.

Regards,

Szybowski





From: glenbrown@vodamail.co.za
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Mussels
Date: Tue, 25 Aug 2009 20:23:13 +0300

Brent remember you were playing with the idea of inflatable mbt's have you ever thought of a square instead of round shape with a inflatable bladder connected to a plastic flat base plate running the length of the mbt's with stainless steel springs that are connected to the bottom of the plate that once the purge valve of the bladder is opened the force of the springs will collapse the bladder on surfacing will be inflated by closing purge and open compressed air valve which is on the same line could be more rectangular shape to shorten springs any comments welcome
Glensa
----- Original Message -----
Sent: Monday, August 24, 2009 12:41 AM
Subject: RE: [PSUBS-MAILIST] Mussels



Good idea with the anti fouling Glen,  That reminds me of a design I have been working on for doing a freshwater rinse of the interior of the fully floodable wings in my Batic THUWG sub design, and a flying submarine.  I just planning to mount misters and/or sprayers in such a matter as all the internal surfaces would be rinsed off. Frank could install some plumbing inside his tanks to do just that, and use it for a freshwater rinse and spray the chlorine with out every having to open the inspection window.

Regards,

Szybowski



 

From: glenbrown@vodamail.co.za
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] GOTTA SEE VIDEO
Date: Sun, 23 Aug 2009 21:31:05 +0300

Hi Frank D
Maybe you should make a spraying wand that you can spray anti fouling into all the cavities.And like you say have some kind of inspection cover that the authorities could use to inspect your mbt's anti fouling comes in a different colors.I would love to see your MBT's design.
GlenSA
 
 


 




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