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[rebel-builders]Rebel -seat belt attachment

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Bob Patterson

[rebel-builders]Rebel -seat belt attachment

Post by Bob Patterson » Sun Feb 19, 2012 11:04 am

Hi Jesse !

I've never heard of the seat belt attach points breaking in a
Rebel ! .... and there have been a few spectacular crashes -
see the photo archives - Alaska tree cutter ... NO injuries !
Where does this stuff come from ???!!!!

In any case, there's no conflict with the standard belt
setup & the pump for the floats - the belts are clear of the handle
once fastened. The pump is behind the belt attach fitting, and
the handle is well above the floor.

The seat frame is far too awkward to consider as an attach point.
Even if it stood up, the seat brackets that go around the rails,
and the pins, would not be anywhere near as strong as the present
fittings - and you'd still have to adjust the shoulder strap.

--
......bobp
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.qbeautyzone.com

-------------------------------orig.-------------------------
On Thursday 24 August 2006 02:25 am, Jesse Jenks wrote:
Has anyone considered attaching the lap belt to the seat frame? I guess the
locking pins would become the weak point if you did that, but would the rest
of the structure be strong enough? It would eliminate the need for 3 heavy
attach points that apparantly rip out in a crash anyway. It would also have
the advantage of keeping the same seatbelt tension when you slide your seat.
I am not seriously considering this at this point, but I thought of it as a
way to get the belts around the hydraylic pump between the seats. My other
solution is to have 2 attach points between the seats, instead of one shared
one. They would be about 5 inches appart allowing the belts to go on either
side of the pump. I will have a 4 inch wide tunnel there for my cables, so
if I make the side channels of the tunnel from .032 then I guess It would be
as strong as the standard way with one bracket sandwiched between two .032
channels.
Does someone know in what way the brackets have failed? I.E. did the rivets
shear, or the structure break?
Thanks.
Jesse



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Jesse Jenks

[rebel-builders]Rebel -seat belt attachment

Post by Jesse Jenks » Sun Feb 19, 2012 11:04 am

Bob,
I could easily be wrong, but the Dixon Rebel in Alaska was one of the
reported seatbelt attachment failures that I was thinking of. I thought he
said they all ripped out. It is impressive the two passengers survived after
seeing the pictures of that wreck. I believe there was one broken arm or
something, but still amazing. I can't remember the other report I was
thinking of, and regardless the Rebel seems to be a very survivable
airplane.
my idea was to use the bolts that attach the seatback to the bottom as the
anchor points for the belts, but I agree that the frames seem too rickety to
trust your life to like that.
While I've got your attention, what do you think about the price quote for
the selector valve?
You could reply to the other post to keep the topics straight.
Thanks
Jesse


From: Bob Patterson <beep@sympatico.ca>
Reply-To: <rebel-builders@dcsol.com>
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders]Rebel -seat belt attachment
Date: Thu, 24 Aug 2006 03:14:58 +0000

Hi Jesse !

I've never heard of the seat belt attach points breaking in a
Rebel ! .... and there have been a few spectacular crashes -
see the photo archives - Alaska tree cutter ... NO injuries !
Where does this stuff come from ???!!!!

In any case, there's no conflict with the standard belt
setup & the pump for the floats - the belts are clear of the handle
once fastened. The pump is behind the belt attach fitting, and
the handle is well above the floor.

The seat frame is far too awkward to consider as an attach point.
Even if it stood up, the seat brackets that go around the rails,
and the pins, would not be anywhere near as strong as the present
fittings - and you'd still have to adjust the shoulder strap.

--
......bobp
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.qbeautyzone.com

-------------------------------orig.-------------------------
On Thursday 24 August 2006 02:25 am, Jesse Jenks wrote:
Has anyone considered attaching the lap belt to the seat frame? I guess
the
locking pins would become the weak point if you did that, but would the
rest
of the structure be strong enough? It would eliminate the need for 3
heavy
attach points that apparantly rip out in a crash anyway. It would also
have
the advantage of keeping the same seatbelt tension when you slide your
seat.
I am not seriously considering this at this point, but I thought of it
as a
way to get the belts around the hydraylic pump between the seats. My
other
solution is to have 2 attach points between the seats, instead of one
shared
one. They would be about 5 inches appart allowing the belts to go on
either
side of the pump. I will have a 4 inch wide tunnel there for my cables,
so
if I make the side channels of the tunnel from .032 then I guess It
would be
as strong as the standard way with one bracket sandwiched between two
.032
channels.
Does someone know in what way the brackets have failed? I.E. did the
rivets
shear, or the structure break?
Thanks.
Jesse



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