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indigoonlatigo(at)msn.com
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 Posted: Thu Oct 05, 2006 9:17 am Post subject: rear seat shoulder harness attach, |
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John,
You are correct, dentist don't mix their own composite except for bonding
porcelain to tooth structure, but then again most of the time the assistant
does the mix. We do however use flowables in tight spots and corners(low
filled resin) and higher density stuff in the other areas. Having worked on
both the micro scale(Dental) and the macro scale, molds and planes, I did
have to learn composite basics and in both fields and the techniques are
interchangable. If one is a dentist and argues this point, I would have to
say they are not a very good dentist or they just don't do composite
dentistry.
Hopefully being a good dentist will keep my airplane from breaking apart and
make it fly straight with as little power as posible.
For resume' see
http://johngonzalezdds.com/sculpting/sculpting.html look at full molded
fiberglass models, big models! Yah the're models, but I am pretty proud of
them.
Knowing what I know I witnessed the most rediculous demonstration of builder
assist at Lancair on their intro video they send out.
At the assist center they are laminating in the main wing spar to the wing
skin, basically closing up the wing and they show a man walking over the top
of the wing to push the skin down onto the spar thus pushing down on the
epoxy between the two structures. Now knowing what I know, both from
dentistry and building models, once the weight is removed(the man walking
away) the epoxy mix under the weight would have squezzed out from the gap
and will not get sucked back under the skin to fill back in the gap between
skin and spar, there is flex in the skin under that tremendoud weight where
the man was standing. Correct application would be to put the load on the
entire length of the wing skin at nearly the same time and leave it there
throughout cure.
It may seem anal, but this is about as important as it gets in my mind.
JOhn G.
| Quote: | From: "John Hasbrouck" <jhasbrouck(at)woh.rr.com>
Reply-To: rv10-list(at)matronics.com
To: "RV LIST" <rv10-list(at)matronics.com>
Subject: rear seat shoulder harness attach
Date: Wed, 4 Oct 2006 21:17:04 -0400
Not to interrupt the primer/filler discussion but I'd like to ask if
everyone/anyone is using the longeron attach points for the rear seat
shoulder harness or mounting to a hard point on the cabin top? BTW:
Dentists have'nt mixed composite for years, Comes ready to use, sans air
bubbles that were introduced by the mixing process. The curing reaction is
initiated by light. Something to do with peroxide, free radicals etc. etc.
Thought you might like to know.
John Hasbrouck
#40264
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jhasbrouck(at)woh.rr.com
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| Posted: Thu Oct 05, 2006 2:55 pm Post subject: rear seat shoulder harness attach, |
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John,
Thanks for your reply regarding composites. Truly beautiful work
displayed on your website. Now to the original question. Are you going to
use the longeron attach or the cabin cover for rear seat shoulder harness?
John Hasbrouck DDS
#40264
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rvbuilder(at)sausen.net
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| Posted: Thu Oct 05, 2006 3:15 pm Post subject: rear seat shoulder harness attach, |
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John, beautiful work! And seriously, is that your place and view! Man
I should have been a dentist..... or single. 
Michael
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Tim(at)MyRV10.com
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| Posted: Thu Oct 05, 2006 5:01 pm Post subject: rear seat shoulder harness attach, |
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John, I also used the longerons. I don't know if I've seen
anyone else use the cabin top for the rear seats. You'd need
to add hard mounts of some sort.
Tim Olson - RV-10 N104CD - Flying
do not archive
John Hasbrouck wrote:
| Quote: |
John,
Thanks for your reply regarding composites. Truly beautiful work
displayed on your website. Now to the original question. Are you going
to use the longeron attach or the cabin cover for rear seat shoulder
harness?
John Hasbrouck DDS
#40264
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rvbuilder(at)sausen.net
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| Posted: Thu Oct 05, 2006 5:49 pm Post subject: rear seat shoulder harness attach, |
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David's AMSAFE inertial belts use a cabin top mount for the attachment.
I already made a bunch of changes expecting to use his.
http://www.inertialbelts.com/
Michael Sausen
-10 #352 Fuselage
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indigoonlatigo(at)msn.com
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| Posted: Fri Oct 06, 2006 3:45 pm Post subject: rear seat shoulder harness attach, |
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I've placed the anchors on the longerons simply because that is what they
told us to do. Also, I think this is a better location because in a forward
inpact crash, the body will be thrown forward and the belts will be the in
the truest opposite direction coming from the longerons.
Thanks for the comments on the web site. I am no where near working on the
cabin top so unless someone knows it chemical makeup, I will ask Van's
later.
John G. 409
| Quote: | From: "John Hasbrouck" <jhasbrouck(at)woh.rr.com>
Reply-To: rv10-list(at)matronics.com
To: <rv10-list(at)matronics.com>
Subject: Re: rear seat shoulder harness attach,
Date: Thu, 5 Oct 2006 18:53:19 -0400
John,
Thanks for your reply regarding composites. Truly beautiful work
displayed on your website. Now to the original question. Are you going to
use the longeron attach or the cabin cover for rear seat shoulder harness?
John Hasbrouck DDS
#40264
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indigoonlatigo(at)msn.com
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| Posted: Fri Oct 06, 2006 3:47 pm Post subject: rear seat shoulder harness attach, |
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Happily maried with child and I did build much of this house myself. I am a
frustrated Dentist!!!!! The mouth is just too confining.
Thanks,
John G.
Do Not Archive
[quote]From: "RV Builder (Michael Sausen)" <rvbuilder(at)sausen.net>
Reply-To: rv10-list(at)matronics.com
To: <rv10-list(at)matronics.com>
Subject: RE: rear seat shoulder harness attach, Date: Thu, 5 Oct
2006 18:14:01 -0500
<rvbuilder(at)sausen.net>
John, beautiful work! And seriously, is that your place and view! Man
I should have been a dentist..... or single.
Michael
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