HBOI uses something similar, albeit longer. The have a biggish buoy, collapsed, that is inflated from inside and starts the process on its own, with only a single air penetration. Something else we probably ought to look into is the cord they used, which is, as I recall, only an eighth inch in diameter. It has a dacron cover, kevlar core and not much stretch. Probably pretty cheap, too, huh?
Thanks Jon, this answers all!
I see a good use for the space in the aft part of my sail.
Here in S. Florida, surface support could scream for help on the VHF, which would arrive in relatively short order,.... should you be disabled on the bottom,... and unable to bail out for some reason. And even if you do bail out, it would be nice to find the thing again to try and get it back!
A locator buoy to follow down to the sub would be a wise addition...albeit yet another...oh well... penetration. Worthwhile I would think.
Thanks again guys!
Joe
>From: "Jon Wallace" <
jon@psubs.org>
>Reply-To:
personal_submersibles@psubs.org
>To: <
personal_submersibles@psubs.org>
>Subject: RE: [PSUBS-MAILIST] ID this picture?
>Date: Mon, 4 Dec 2006 10:32:00 -0500
>
>
>Look at the right side of the spool where the bracket is welded to the sub.
>Look at the air line that feeds the rear ballast tank and just behind it
>you'll see the thru-hull fitting. Look at that more closely and you can >see
>the shaft coming through the thru-hull, and attached to it is a flat bar.
>You can see one end of the shock cord attached there. From inside the sub,
>Harold just twists a lever and either the ends of the shock cord spring
>free, or they are cut by the shearing action of the flat bar pulling the
>cord against the bracket above it. I seem to recall Harold saying the >shock
>cord was cut by this action thereby assuring they would release completely.
>
>There are two other views at
>
http://www.psubs.org/convention/2003/pics.cgi?pics/k350-3/PDR_0095.JPG
>
http://www.psubs.org/convention/2003/pics.cgi?pics/k350-3/PDR_0096.JPG
>
>Jon
>
>-----Original Message-----
>From:
owner-personal_submersibles@psubs.org
>[
mailto:owner-personal_submersibles@psubs.org]On Behalf Of Smyth, Alec
>Sent: Monday, December 04, 2006 9:55 AM
>To:
personal_submersibles@psubs.org
>Subject: RE: [PSUBS-MAILIST] ID this picture?
>
>
>As I recall Harold has the buoy secured by shock cord. There is a shaft
>through the hull with a little rectangular bar on it, and the shock cord
>is threaded through grooves on the ends of that bar in such a way that
>when he twists the shaft, the shock cord escapes and the buoy floats
>free. The buoy is wrapped in a poly line that unravells as the buoy
>rises. When I wanted to put a marker buoy on Snoopy, I remembered
>Harold's principle of operation but could not recall exactly what shape
>those grooves had on the ends of the bar, so I simply put a thread on
>the outboard end of the shaft to unscrew the buoy from inside.
>
>Alec
>
>-----Original Message-----
>From:
owner-personal_submersibles@psubs.org
>[
mailto:owner-personal_submersibles@psubs.org] On Behalf Of Joseph
>Perkel
>Sent: Monday, December 04, 2006 9:24 AM
>To:
personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] ID this picture?
>
>
>How is this released?
>
>Looking at the picture, you see it well secured for road transport. Just
>below the buoy itself, you see a short line going to what looks like a
>strap around the hull. Is there a release mechanism down under the
>hull?...and how is it actuated?
>
>Joe
>
>
>
>
>
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