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   Post on Leveling wings for mounting flaperons in Avid Flyer General Hangar

   By Dhallmark, posted 6 Feb 2019

   Asked this in the mk4 sub forum as well but didn’t get any responses so I’ll try here. Bought and Avid Champion which is basically a single seat Mk4. It has the same stol/heavy hauler wing as the mk just a little shorter and built with lighter spars. It came with two construction manuals, one for the champion which is pretty vaugue and really only has a few pages of variations about wing construction as opposed to the mk4 and a parts/component breakdown section, and a mk4 manual that I guess you just kind of wing it and use for the rest of the construction. The champion manual may not be complete. Anyhow, my question is this, I’m to the point of mounting the flaperons and rigging everything before tear down and final paint and reassembly and if I go by the mk4 manual it says to level the wings at the rib just inside the jury struts starting with right wing because it has the non adjustable lift strut then the left wing adjusting the heim joint until the left wing is level. At that point you clamp the flaperons in place and adjust the flaperon hinge mount to be at a 50 degree angle off the back of the rib tip. The problem is when I level the wing I expected the doorsill of the plane to be level in relation to the wing but it’s not. With the wings leveled the fuselage has a very nose down attitude and even the motor looks like it has a very pronounced downward thrust line. Is this normal on the avids or should I maybe level off the doorsill instead? When I do level the fuselage versus the wing it looks a lot more like the level flight “stance” I would think the plane would have in flight. Sorry for the long post. I know most guys don’t know much about the champion. I believe there were only about ten built and this one is number nine. Hope someone can help. 
   Thanks! 
   Damon
   
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   Post on Leveling wings in Avid Model IV

   By Dhallmark, posted 1 Feb 2019

   Not sure where to post this question. Did some searches but still didn’t quite see the answer I was looking for. Anyway, I picked up an Avid Champion. Not a whole lot of them made but from everything I’ve gathered and found out it is basically a single seat flyer mk.4. I’m about to mount the flaperons and in the manual it says to mount the wings on the plane and level them before setting the flaperon hinges at 50 degrees. The way it says to level the wings is to place a straightedge from leading edge to trailing edge on the rib just inboard of the lift strut points. I assumed when the wing was level the doorsill/ lower longeron would also be level in relation to the wing but if I level the wing the fuselage is in a very nosedown attitude. Does the mk4 have the same nose down attitude if leveled by the wings? Or should I just level at the doorsill? Does this make any sense? Thanks for input in advance.