REFLECTOR: roll trim

Douglas Holub douglas.holub at gmail.com
Wed Mar 25 13:24:46 CDT 2009


Al,

Yes, the third wing bolt is at the top and it does have a shim, but it won't affect the cowl fit as much if I leave it alone, and it won't affect the amount of twist to the wing, just keep it from moving the winglet forward by about 0.2 inches. 

Doug
  ----- Original Message ----- 
  From: Al Gietzen 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Wednesday, March 25, 2009 1:48 PM
  Subject: Re: REFLECTOR: roll trim


  Doug;



  Yes, adding a shim to the top bolt on the right will increase its AOA and maybe straighten things out. Just guessing; I'd try something about half the thickness of the WA washer.



  BTW; isn't there also an in-board top bolt, and did that have a shim washer as well?  Or am I having brain fade and the inboard bolt is on the bottom.



  I don't notice a change in roll trim when having a passenger in the right seat - maybe I'm just too insensitive, or maybe it's because I remove ballast weight that is right of center on top of the canard (under the RBH).



  Al







  -----Original Message-----
  From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Douglas Holub
  Sent: Wednesday, March 25, 2009 8:44 AM
  To: reflector at tvbf.org
  Subject: REFLECTOR: roll trim



  I removed the large area washer shim from the top outboard wing bolt, but I've still got a slight drift to the right when flying hands-free. It's not much; my hand just needs to rest against the stick to get it to fly straight. As luck would have it, removing the shim actually helped my cowl to fit better on that side. 



  So now I guess the next step would be to add a shim on the right outboard top wing bolt hole. But the cowl fits perfectly now, and I'd like to keep it that way. 



  I've got an EZ-Pilot for aileron trim. If I shim the wings to fly straight and level flying solo, will I still need to trim with a passenger on the right side? 



  I'm pretty pleased with N2980W's performance so far: 165 kts true at 6000 feet turning 2550 RPMs with ECI's parallel valve IOX-360, a fixed pitch 2-blade prop, and no wheel pants.



  Doug

  Standard FG w/ electric nose lift

  9.6 hours down, 30.4 to go (but who's counting?)



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