Brent,
Thanks for supplying the link once again. I see more than
one strap in this image, (is it in a Y-configuration?). There is one
blended into the carbon fiber composite at the bottom front of the dome and
another just barely visible along the top of the dome running down to the other
strap.
It is hard to discern if that is a raised land but looks more
like two grooves.
R/Jay
Respectfully,
Jay K. Jeffries
Andros Is., Bahamas
Talk sense to a fool and he calls you foolish.
- Euripides (484 BC - 406 BC)
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent
Hartwig
Sent: Tuesday, September 02, 2008 4:19 PM
To: PSUBSorg
Subject: [PSUBS-MAILIST] Dome Attachment Means Options
Greeting Subbers,
You might of noticed the the Deep Flight challenger has only one strap going
over the dome to hold it down. I didn't notice it right off, since
it blends in some what. If they do have a second one they have
designed to be installed, it's not on in that picture. The DeepWorker sub
hatch domes look to have two straps, that are perhaps out of 316 SS. The
one on the challenger looks to be powder coated to me. I would expect that they
also have some type of soft urethane or rubber gasket under the straps to make
a nice soft connection.
As for what they use for a seal under the glass or acrylic domes I don't
know. I would guess it might be a hard urethane gasket. I can't
tell for sure but there looks to be a large metal lip inside the Deepworker's
dome, for perhaps keeping the dome centered and helping keep the gasket from
moving inside at pressure. Perhaps Phil will enlighten us, if we are really
lucky. ;)'
http://bp3.blogger.com/_FlxDEKxj5U4/R8IeBNG7yII/AAAAAAAAACw/af_AI6qySU8/s1600-h/DSCN1308.JPG
Your
resident dome holder ;)'
Regards,
Brent
Hartwig