Re: [PSUBS-MAILIST] Launch Retrieval Transport

Hi Dean,

We need to be careful with this idea of pontoons with regard to stability. There is more than enough lift provided, but I just discovered as noted to Vance, that the "hydrohoist" seems to have a fixed pivot point which would counter this. I don't know for sure, I never really looked at one closely, but this issue of stability needs to be looked at very closely.

No matter how we slice it, you are raising the cg significantly. Obviously, if we could spread them wide enough....who cares, but @ 8.5'.....I just don't know yet.

Jay has an idea for a planning sled that may very well be a better solution than this, in that it would allow for seaworthy towing as well as shallow water launching.

Clearly, problems to be worked out.

Joe

From: Recon1st@aol.com
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport
Date: Sun, 5 Nov 2006 11:52:20 EST

In a message dated 11/4/2006 9:39:08 AM Central Standard Time, joeperkel@hotmail.com writes:

Here are the problems that I can foresee here, and would like discussion on improvements or otherwise unforeseen circumstances.

Joe I am Dean Ackman from Duluth Mn. You are touching on the subject

of my plans for trailoring.

I am planning a 2 man 1atm fw 300-400 ability.

My current thoughts so far is using pontoon boat pontoons for the

trailer.

Being from Minnesota I am very familiar with pontoon boats and have a

huge resource of cheep parts.

You are correct in width being a problem to keep em legal down the road.

My solution so far (unbuilt or tested) is at least a double deck pontoon

set stacked on each other. The top set will have cradle for sub. The

top section itself will be on slides to pull it back further in the water.

Most Lake launches I will be going in, get fairly deep once you get

past the normal boat launching area. Once I achieve bouancy on the sub

a simple mechanical release will turn her loose. I have even thought of

a cat walk thingy so I don't need to get me all wet to enter the sub.

Most of my diving will be in Lake superior, and their are many good

launch points I can use. However I do have several 200 ft lakes

in the area I may want to explore so I am also considering Having

the trailer to have the ability to disconnect the wheels and become

a tender boat for these lakes.

Any way like I said the only place this exists is in my head, but

have not been able to think of a reason why it won't work.

Dean

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