[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PSUBS-MAILIST] emergency lift bags
To open the hatch at -1 ft seems a better solution = drop weight.
20 ft = 6 meter depth - hatch of 2ft diameter has a area of 0,283 m2
so at 20 ft the pressure on the hatch wil be stil 1,7 ts.
Means in even a full dry boat with just destroyd mbt you have to
flood it and destroy all the interior by saltwater..
"If you have air a to blow an lift bag - means you have still air to blow the mbt"
Lift bag is a good thing to have - on shore in store at the car close to the diving spot.
vbr Carsten
<Recon1st@aol.com> schrieb:
> I am wrestling with enlarging my MBT's for more reserve.
> What I am thinking, is for sure I need more, but do I really.
> As is I have enough freeboard for normal dive operations.
> But am uncomfortable as far as a flooded outer tank etc.
>
> or an entangled situation.
>
> I am thinking that a 6600lb lift bag for emergency use is about
> as good as it gets. If mounted as we discussed earlier and inflated
> from within manually would do a nice job. That much capability I
> could actually surface even under a full flood situation. The idea of
> opening the hatch at 20 ft sure seems a lot niceer than at 350 ft.
>
> Any thoughts on this
>
> Dean
>
>
************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003. Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.
If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
removeme-personal_submersibles@psubs.org
Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.
PSUBS.ORG
PO Box 53
Weare, NH 03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************