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Greetings Glen,
Those long cylinders might make your sub track
better as well. The syringe/piston type system your talking about sounds a
bit like the ballast systems you see on some RC
submarines.
The rubber on my inflatables is pretty thick, so I
don't want to fold it more then I would have to. As I'm working it now,
they are just laying flat inside the upper long deck and the lower cover plate.
Doesn't get much more simple then that. I could just leave them out deflated up
under the upper aluminum deck loose, like you see on the SEAmagines in there
open tubes. But I want cleaner lines if they can be had.
Brent
Sent: Wednesday, August 26, 2009 12:08 PM
Subject: Re: [PSUBS-MAILIST] Collapsible Amas and Saddle
Tanks
Hi Brent
Just finished my ct today. thanks for the link I am
busy digesting your ideas I think ribbed inflatable pontoons something like a
accordion could work after use just be sucked back into a recess.I was thinking
if I took three pipes per mbt center pipe is a piston pipe with a steel
stopper ring and water port in the center and the other 2 pipes or should I
say cylinders with o rings similar to an syringe on either side of the
centre pipe cylinders connected by long springs to each other and the compressed
air flow running from a t piece in the centre of the piston to the ends of the
piston which feed the 2 cylinders the same air system could be used to
allow the air to escape pre diving thus a system that works solely on air
pressure and automatically compacts on diving even if the cylinders stick out
fore and aft on motoring on the surface it will probably make the machine more
stable
all the best
Glen SA
----- Original Message -----
Sent: Tuesday, August 25, 2009 11:40
PM
Subject: [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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