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Old 03-26-2005 | 01:24 PM
  #480  
JRW
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From: lancaster, CA,
Default RE: Impact

Hi Guys - AWESOME thread. I've dutifully read ALL the posts. I am now preparing to hang the wings and stab. Instructions call for 2-2.5 degrees of down thrust. However, this is not built into the plane as far as I can tell. 3 of 4 of the horizontal stab locations match when measuring vertically from my building surface with the tail blocked up 33.5 mm. with only 1 being a about 2 mm high. However, the down thrust in this setup is only 1.5 degrees. Also, the right side wing tube hole and aft pin are about 3 mm lower than the left side.

Essentially, if I block up the tail 33.5 mm as suggested in this thread, 1 horizontal stab point is off (I can fix that), however, the left side of the wing locations are low 3 mm, and down-thrust is only 1.5 degrees. If I raise the aft end of the fuse to get 2-2.5 degrees of downthrust, then the wing and stab locations are off is X and Y directions?

What is the best thing to do? Block up the tail to get the down thrust (2.5 degrees)? Or, block up the tail where at least 3 out of 4 of the stab locations match, adjust the 4th to match the three, and let this be the "zero-zero" reference, then add down thrust to the motor, and reference the wing incidence from this position????

Thanks,
Jim W.