RCU Forums - View Single Post - Long ez 46 engine mounting question.
View Single Post
Old 06-04-2006 | 11:23 AM
  #11  
jmupilot's Avatar
jmupilot
Senior Member
 
Joined: Aug 2002
Posts: 392
Likes: 0
Received 0 Likes on 0 Posts
From: Harrisonburg, VA
Default RE: Long ez 46 engine mounting question.

I just did some balancing test on my LongEZ. Here's what I got: Empty tank with gear down is 16 3/16 in from leading edge of canard wing
Empty tank with gear up is 16 1/4 in from leading edge of canard wing
Full tank with gear down is 16 11/16 in from leading edge of canard wing
Full tank with gear up is 16 3/4 in from leading edge of canard wing

This is about 1/2 to 1/4 inch in front of the CG recommended in the instructions. I figured that the canard to wing placement on the fuse may vary some with our models. Its just a reference point on mine. Maybe we could measure from the landing gear, or find a point that will be the same on everyones.


Full tank ready to fly weight is 6 3/4 lbs. I found that cycling the nose gear up and down only causes the nose to rise and lower on the Great Planes balancing machine about an inch. I didn't see any changes while in flight. I still do not have the cowling on the plane yet. It has a OS LA 46 with 11x7 APC pusher prop and a Magnum XL 40-50 Pitts muffler. RPM is in the 11,700 range on 15 % wildcat fuel.

Anyone else care to post thier Stats.

Pete