Russell Kent wrote:

Everyone,
Check out this motor mount on the Atlantica #1 prototype:
http://www.wingco.com/news/P_pic/Image03.jpg

I don't know if they're done attaching it, but it sure looks like a way NOT to do
it...

Russell Kent

Looks like a stock LOM mount to me Russell. Lots of hours on those
so it should work. The mount rails are designed to take lateral
and vertical loads in bending. It is the same idea as a P51 mount.

Lateral loads in theory (forgetting gyro loads for the moment)  are 
near zero because the aircraft banks to turn and British AC 
designers in WW II considered them zero. Apparently Chezk
designers felt the same way. American WW II AC designers on the 
other hand used one G lateral as I recall. I learned this by 
reading the book Mustang Designer.

In actual fact lateral loads are generated due to gyro
loads from pitch. At least I recall it is lateral. I know
it is 90 degrees to the plane of the pitch.

I am an American :-) I would brace it laterally.

Paul Lamar
 
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