RE: [PSUBS-MAILIST] Diver lockout VBT

["Jay K. Jeffries" <bottomgun@mindspring.com>]

The Coast Guard and OSHA specify no live-boating.  If you review those few
subs that still have lock-out capability (including the big ones like the
decommisioned USS Parche), they all have legs, skids, or tubes to set down
hard on.  A floating, anchored submersible can swing in a current and drag
or pin a diver.  In addition, it could squat on the diver.  Simon Lake did a
lot of the original lock-out work and he settled on flooding negative on the
bottom for all of the subs he built with lock-out capability.
R/Jay


Respectfully,
Jay K. Jeffries
Andros Is., Bahamas

A skimmer afloat is but a submarine, so poorly built it will not plunge.


-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Sean T.
Stevenson
Sent: Friday, May 25, 2007 7:36 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Diver lockout VBT

With regard to Vance's comment about insurance for commercial lockout ops
prohibiting live boating a locked out diver, is it sufficient to anchor a
neutral trimmed boat over the bottom, or is it necessary to have a skid
arrangement to touchdown and flood negative?







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