David Carter wrote:

I'm filling out the "RV-6/6A Special Finishing Kit Order Form" - to be used
by those NOT buying the Lyc from Van's.  On the back it shows 3 types of
engine mounts that are available:
    - Dynafocal 1 - lines from rt & left converge about center of fwd rt
cylinder (looking down from above engine)
    - Dynafocal 2 - lines from rt & left converge at front of crankshaft
(same view from above)
    - Conical - Holes parallel (same view from above)

I'd like to know if one of these three is easier to modify to mount a

rotary

engine than the others;  or, are there  pros and cons for each?

David Carter
RV-6, Nederland, Texas

It is easier to start from scratch. Save the money and don't buy
the mount from Van. Jerry Hey builds a very nice and strong mount.
If that is not possible Jerry can start with any of them and cut off
what is not needed. In that case buy the conical as it is probably
the cheapest.

Paul Lamar

No need to pay for and cut up a complete mount.  The business that supplies
engine mounts for Van's is in Tacoma, Washington.  You can get a partial
mount that can then be added to as required for the rotary.  You want to
get the mount with the firewall frame, fuselage mounts and landing gear
mounts all welded together.  Brian Trubee can talk about this more in
detail as he built up his RV-4 engine mount this way.  He powder coated it
when he was finished and it looks great.  I can't remember the name of the
motor mount builder in Tacoma off the top of my head ..Brian? ..anyone?

Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR
13B in gestation mode

 
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