Paul and Steve, Steve gave me a prop flange to firewall distance of
39.5" I am trying to reconcile this with the measured cowl length of
41 inches. It may be that there is an extra 1.5 inches that can be
added to the prop extension while keeping the engine at the proper
distance from the firewall. Jerry
I am not going to redo that motor mount again :) I almost have it
done. Just stick the cowl on there and measure what
you need before you order the prop extension.
--
Paul Lamar ...No rotor no motor.
Works for me!
Steve.
Here are the dimensions guys. Check them carefully so when
Jerry sets it up in the jig and welds it.... it will fit the firewall.
Some of the parts on the dwg might be off a few thou but that
is of no consequence as it is up to Jerry to place them
accurately in the jig going on the correct dimensions alone.
Steve, best to ship Jerry a thin sheet metal template
match drilled with the firewall holes. The Lancair design has a lot
of mounting holes in the firewall due to the retractable
nose gear. Either that or don't drill the holes in the firewall
until you get the motor mount.
BTW Steve, can you take a picture for me of the back side
of the firewall. Not needed for this job but I am just curious.
Paul Lamar
Steve Veach wrote:
Paul, Jerry,
Please bear with me, I am working from my mother-n-laws computer and
it doesn't let me view the drawings w/o scrolling. All the dimensions
looked good with the exception of the distance between the lowest 2
hardpoints and the highest 2. You have 11.04, but on the one sheet
I have 13-3 or 10 inches. When I measure on the full size sheet,
it is 9 and 13/16.
Jerry, where do you live? I propose that I ship you my Lancair mount.
It weighs next to nothing and could probably go Greyhound. It was bolted
to the firewall when I bought my partially completed kit. If I send it
to you, you can go with the actual distances that we know will work since
it came off the fiirewall. Anything else seems a bit of a crapshoot unless
I measure and send numbers from the mount itself. (still probably a crap
shoot) Another benny is that you can see exactly how the nose gear attaches.
It requires a couple of square pieces of steel welded on with small holes
drilled on the diagonal. The positioning of the pin the gear pivots on as
it retracts is obviously critical since the rest of it is installed.
I am now on Christmas vacation until the 3d of January. I may actually
be off the (email) net completely for the next 3 days-can't say for sure.
Perhaps you can give me a call tomorrow and we can talk specifics.
Once again, thanks for all the effort!
Steve
Thanks Steve. I will redo the dwg shortly to correct it.
Good idea on sending Jerry the stock mount.
I'll send Jerry your phone number by private email.
Paul Lamar ...No rotor no motor.
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