Kind of alluded to this problem in another thread, but could sure use your ideas.
After restoring my L-4, we rigged it using the original Army manual. It flew fine, but always needed a touch of right rudder in cruise to keep the heading from wandering to the left. I got used to this and just kind of put up with it for 15 years or so.
At the last annual, I decided to try a fix. My thought was to reduce the lift on the right wing just slightly by reducing it's angle of incidence with relation to that of the left wing. I moved the fork on the right wing's forward wing strut in 1/2 turn, and moved the fork on the right wing aft strut out 1/2 turn. The left turning tendancy is gone, but now the aircraft feels skittish, as though it has little stability about the longitudinal (yaw) axis.
I thought I'd move the forks back to their original positions and start over. What should I try?
Sighting along the top of the vertical stabilizer shows that it is offset to the left slightly.
Thanks!
Howard
After restoring my L-4, we rigged it using the original Army manual. It flew fine, but always needed a touch of right rudder in cruise to keep the heading from wandering to the left. I got used to this and just kind of put up with it for 15 years or so.
At the last annual, I decided to try a fix. My thought was to reduce the lift on the right wing just slightly by reducing it's angle of incidence with relation to that of the left wing. I moved the fork on the right wing's forward wing strut in 1/2 turn, and moved the fork on the right wing aft strut out 1/2 turn. The left turning tendancy is gone, but now the aircraft feels skittish, as though it has little stability about the longitudinal (yaw) axis.
I thought I'd move the forks back to their original positions and start over. What should I try?
Sighting along the top of the vertical stabilizer shows that it is offset to the left slightly.
Thanks!
Howard
