Rick Girard wrote:
I recognize the motor mounts as being from a LongEZ. Just the pictures
I need, as my engine will be done in about two weeks or so. If you find
anymore of these old pics, lease pass them along. And should the
builder recognize his handy work, please, PLEASE take lots more pictures
and send them to Paul.
Rick
Paul wrote:
Don't copy those motor mounts Rick. Not strong enough. See the ACRE NL web site for the
way Perry did it. Perry's design is a bit overkill. You could go down to
5/8 diameter tubes. The ones tying the four mounts together parallel with
the firewall could be 1/2 inch.
Paul lamar
Careful Rick, you need to beef up the fuselage to use the rubber
in the firewall trick. You need to add glass and plywood doublers
in the area where the rubber mounts go, to get 3/4-7/8 thickness.
Also some glass structure to beef up the firewall to fuselage in
those areas. I'm planning to emulate the layups in the Cozy IV,
since they hard mount the engine mount to the firewall in a similar
manner with bolts only. This new mount has not been installed
in the plane yet.
Whoever did that Long-EZ mounted the engine similar to how
mine is now. Looks like it is rigidly mounted. I also have
compression struts at the bottom, so I have three mounting
points per side instead of two.
--
Perry Mick
Duckt N7XR
http://www.ductedfan.com
Perry's compression struts are essential if you are going to use
this type mount.
Here is a picture.
Paul Lamar
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