My flaperon control rod scrapes the fuel pump. (this is the updated fuel pump)
Any idea of how to remedy this?
Alan
N603NH(reserved) RV12 50% done?
Scott,
What's the fix? New torque arms?
Alan
Scott,
What's the fix? New torque arms?
Alan
This is usually caused by the flapperon push/pull tubes being not quite the proper length when the flapperon torque tubes were originally drilled (if they are just a bit short the horns on the torque tubes will be angled fwd a bit too much which will cause contact when it pivots fully fwd.
my right Flaperon tube only hits with no flap setting
Alan
Scott, I believe you are partly correct. It has to do with pushrod length but not torque tube drilling. The drilling process only determines the position of control surface (although they may not measure to the dimensions in the PAP). Contact with the fuel pump is caused by the either flaperon pushrod being too short or the the flap handle to mixer bellcrank being too long. Or both. Ask me how I know.
so today I measured the flap control rod I got 11 7/8. The specs say 11 25/32
both flaperon control rods were 38 7/8 the specs say 38 3/4
these measurements were in the plane with a tape measure so I'm sure they could be slightly off
Should I remove the rods and remeasure?
Is this slight difference enough to cause the lack of clearance of the right flaperon control rod?
Alan
Question - now that you changed lengths of control rods, will there be a noticeable roll induced when you lower the flaps?