alpinelakespilot2000
Well Known Member
My first attempt at drilling the two rib holes into the stainless steel counterbalance tube did not work as well as I hoped. After following Van's directions, I ended up with warp in my aileron spar, due almost undoubtedly to the fact that the holes of one end of the tube did not align with the two on the other end--I think one set of holes were pretty much aligned, the other set not so aligned.
Fortunately, I can probably just abandon the bad holes (notice them at the top of the picture), rotate the tube slightly and redrill two new holes on each end. This time I plan to mark my hole locations with the spar clamped to the work bench on each end (which I did not do the first time). Are there any other tricks or suggestions anyone might have that would help make sure my holes end up lined up from one end to the other and leave my aileron spar warp free?
Thanks,
Steve
Fortunately, I can probably just abandon the bad holes (notice them at the top of the picture), rotate the tube slightly and redrill two new holes on each end. This time I plan to mark my hole locations with the spar clamped to the work bench on each end (which I did not do the first time). Are there any other tricks or suggestions anyone might have that would help make sure my holes end up lined up from one end to the other and leave my aileron spar warp free?
Thanks,
Steve