Hi Paul,

Since the box beams were bent up to match the width of Tracy's spacers,
the tabs would make it too wide, so the existing beams couldn't be used
with this mod.  How about welding a supporting structure to the bottom
of the beam in the center where the box structure has been cut back?  I
would think the box could be cut back to a 'U' section in the center if
the right strengthing member were added to the bottom.

Bob W.


http://www.bob-white.com
N93BD - Rotary Powered BD-4 (real soon)
Prewired EC2 Cables - http://www.roblinphoto.com/shop/

Please measure your beam width for me Bob. Should only be 2.70 inches

wide.

The spacing between plate and engine should be 3.050 or 3.080 I forget
which.

If the spacer lengths are less than that you might have a problem with

your PSRU.

Paul Lamar

This will work and make it bullet proof whether you choose to cut
the big hole or drop the beam. This is 1/2 inch square 4130 tubing and 1/2
inch round 4130 steel spacers.

Paul Lamar

Paul,
Good idea with those bracers, but might be better if they weren't fixed at
the bottom but were on a tube/ spacer to allow sight adjustment.
Also they ears could be easily cut into the wall of the beam and welded in,
to get around the thickness problem.
George (down under)

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