This assumes a cowl came your with aircraft kit.
If the cowl is in two pieces top and bottom your in luck.
Get a motor plate from Jeff. Mount the engine and gear box to the
motor plate. See the bottom of front page on
http://www.rotaryeng.net.
It will provide an aerospace quality professional look to your
engine installation.
Get the rubber bushings from McMaster Carr
The Barry Controls Part number is 26833-1
MCMaster calls them " Versa-Mount Vibration-Damping Mounts"
soft
<http://www.mcmaster.com/#6309K34> $8.30
Hang the rubber bushing holders off the rubber mounts with a 2
3/4 inch long 1/2 inch socket head Bolt.
Support the engine in the correct position. Use a play wood box
or saw horses
or what have you.
Use the top of the cowl to correctly position the prop flange in
the cowl hole.
Buy a set of Rod end clips for attaching rod ends to the
firewall. Drill them for the proper bolt sizes. Mount them in the
existing hard points on the fire wall.
See the bottom of front page on
http://www.rotaryeng.net.
Use a tape measure to find the distance between the attaching
holes for the six tubes that make up a motor mount. Subtract 3
inches and that is the length of tube you need.
The two lower outer tubes are one inch square .049 wall and do
not need a rod
end on the rubber bushing holder end. Subtract only one inch.
Order the tubing and cut it to length. Weld on the 7/16 rod end
adapters .
Buy the rod ends and the high angle rod end spacers and you are
almost done.
Use AN bolts the correct length so bolt threads do not chew up
the steel clips and rubber bushing holders. They are also the
correct diameter to the nearest one thousands of a inch.
Hardware store bolts are not always. Usually the diameter is all
over the lot.
AN bolts are also closely controlled for good strength.
Assemble the mount and your done.
Paul Lamar
The Rotary Engine News Letter. Powered by Linux.
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