Paul, could you please render a new version of the CH-640 mount(based on the
ch-801, but with a lower rear attach from oil pan rear over the nose gear
strut), utilizing the Doddridge plate, Tracey Cook RD1-C, rear lower oil pan
vibration stabilizer, etc. (basically all the features of the final version
you sent) but move the plate and engine out 6" further from the fire wall to
accommodate for the use of the RB light weight center and end plates? I
spoke with Mathieu Heinz when I picked up the wings in Canada, discussed the
implications of the lighter weight installation, and his recommendation was
to move everything out 6".

Also could you make notes for me as to the basic raw construction materials
used, like different tubing sizes, IE diameter and wall thickness.
I have both Q-Cad and Alibre now, so I should be able to read the cad dwgs
directly.

Craig Smith

snips...

Preliminary motor mount design.

One of the unanticipated (by me) side benefits of a light weight 200 pound
(with PSRU & acc.) 250 HP p-port all aluminum engine moved six inches
forward in the cowl is more room for the cooling system.

I would also take advantage of the increased net payload by enlarging
the fuel tanks for more range. Lots of range is a safety factor as
you could get somewhere and need to go back because of weather.

You will also need a 3 blade prop to absorb all this HP.

This airplane is going to blow a lot of peoples minds.
Excellent short field performance will be all too obvious.

Paul Lamar