Hello All:

I tried a few more flights of the diesel Junkers and am convinced I can get better handling (still a bit too twitchy, though much improved by the advice here). I've ruled out neurological disease on my part, so that means the airplane needs further attention!

While thumbing through an old Brodak catalog recently, I ran into a discussion of a phenomenon called "hunting." What the term basically means is that the aircraft is searching for a level flight but can't find it due to over control or a design factor. The writer suggested three solutions.

1) A larger bell crank. In this thread above, Lou's argument in favor of a larger bellcrank is compelling, so I placed one of those (3") on order.

2) A slightly larger hole in the control horn. This would introduce some elevator sloppiness and reduce any inadvertent control inputs (shaking hand, etc.) on the part of the flier.

3) Misalignment of flight surfaces. The article writer thought this problem could be difficult to detect and the hardest modification to make. But I tried to evaluate my plane for alignment with simple tools, and it seemed to be OK, at least by eyesight.

So, I'll take the easy advice in the first two and fly with it. Will let you know how it goes.

Davey Mo....