[rebel-builders] Moose bracket fus 331

[Mike Kimball]

That looks nice. However, the only landing gear failure for a Super
Rebel/Moose that I know of was attributed to a problem with the outboard
attachment point where the gear leg is captured between aluminum blocks. I
believe that was blamed on the quality of the bolt and possible
over-torquing. Looking at the gear the lower block at that point has always
givin me worries since it seems so insubstantial. Your new inner attachment
point will certainly deal nicely with side loads on the bolt described on
the PPONK website but I still worry about the outer attachment. Just
paranoid I guess.

I see how shims are used on the PPONK outer gear attach upgrade. Do you
have a similar upgrade requiring shims? Otherwise, I don't understand the
need for shims with the stock outer attachment point.

I find it funny that the PPONK website repeatedly talks about the need for
their upgrade so the gear will survive a ground loop or hitting something
bad like a deep pothole or rock. I guess you don't need the upgrade if you
can manage to avoid a ground loop or immovable objects. That's my plan.

Mike
044SR

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Robert
and Olga Johnson
Sent: Monday, September 11, 2006 5:17 AM
To: rebel-builders
Subject: [rebel-builders] Moose bracket fus 331

Hi guys and gals: During the construction of the Mevissen Moose 226 we where
concerned about the spring gear attachment points. In reviewing the "pponk
fix for Cessna aircraft (www.pponk.com) we came up with a redesigned fus
331. I have posed a picture in the archives under SM landing gear. ( or "new
files") the one on the left is obviously our redesign with the one on the
right as furnished with the kit. We had two of these made for the quick
build and I was able to bolt them right in as new replacements. The only two
requirements are longer bolts and covers as they will extend slightly above
the floor. Also when installing the landing gear you must shim the opening
to eliminate any movement. Please review the above fix for Cessna for a
complete description on why this fix should be done. I have this new part in
AutoCAD 2000 format if anyone is interested. I would be happy to forward you
the drawing. We also increased the thickness of the part from 1 1/4 to 1
1/2" for a litt
le additional strength. This typ
e
of retention should be used in any spring gear retention which will become
obvious after reading the pponk web site. Thanks -Bob Johnson - QB Moose
226, Rebel 192/731



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