RE: [PSUBS-MAILIST] Launch Retrieval Transport

Jay,

looking at this today since an early trailer decision needs to be made anyway. Following are a couple of excerpts from the hydrohoist technical specs......

A single motor control will use:
1252 Watts
10.6 Amps

Max suction = 110.44" water
Max airflow = 103.49 CFM

Clearly, my idea of using batteries, is a dead dog, ....so a 1500w generator is required.

This problem of S. Florida launching is giving me heartburn!...would hate to be limited to marina lifts as their locations may not always be what you need.

Joe

From: "Jay K. Jeffries" <bottomgun@mindspring.com>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: RE: [PSUBS-MAILIST] Launch Retrieval Transport
Date: Sun, 5 Nov 2006 08:08:49 -0500

The tires can be filled with water as they often do on forklifts and large front-end loaders.

R/Jay

Respectfully,

Jay K. Jeffries

Andros Is., Bahamas

It is the mark of an educated mind to be able to entertain a thought without accepting it.
- Aristotle

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Joseph Perkel
Sent: Sunday, November 05, 2006 7:53 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport

Carl,

Just conjecture here as I've not worked it out, but I worry about stability with that, perhaps reversing the cg, and center of buoyancy (bad news).

Anecdotal evidence (as demonstrated by the nice folks at "hydrohoist"), suggests the hydrohoist on wheels concept may very well be viable. The tires, may or may not have to to compensated for.

Joe

From: "Carl Dickinson" <dickinson8@msn.com>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport
Date: Sun, 5 Nov 2006 06:56:53 -0500

Joe,

What about a inflatable float design, basically an underbelly or below the waterline bladder?

Carl D.

----- Original Message -----

From: Joseph Perkel

To: personal_submersibles@psubs.org

Sent: Sunday, November 05, 2006 6:12 AM

Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport

Did a quick and dirty conceptual sketch of the "dry dock / utility trailer".
(not to scale),
(Cylinders are MBT's and rectangles are floats.)

http://www.frappr.com/?a=viewphoto&id=269116&pid=3192195

What you have here, is basically a "hydrohoist" on wheels.......

http://www.boatlift.com/

However, not yet solved, are the proper volumes / dimensions of the
components and how it all fits to scale, with wheel height, width, cg and
center of buoyancy all worked out.

As Jay points out, this is unsuitable for towing to sea, and remains only a
potential for "skinny water" launching, but it does have the advantage of
not having to worry about "clearing" the trailer in any given distance from
the launch vehicle.

Joe

>From: ShellyDalg@aol.com
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport
>Date: Sat, 4 Nov 2006 23:06:01 EST
>
>Damn!......I love this group! Keep the ideas flowing. Frank D.

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