Kris wrote:
Since you located the fix point of vane cords in proximity of servo axle there will be no change in the distance / linking cord length when swinging.
I start today making the vane assembly and am waiting for the servo drawings.
In fact, Kris, the placing of this point is important - it's where the essential negative feedback is applied in this kind of servo pendulum gear, and there
is a controlled amount of change in the vane linkage cord length. The vane linkage cords are attached to the servo carrier at 120mm
out from the servo blade's vertical axis, and ~40mm
down from the 15˚ inclined servo carrier axis. Thus, as the vane puts an angle of incidence onto the servo blade, and it swings out to one side as a consequence, the angle of incidence is reduced in direct proportion to the amount of swing.
Detailed drawings, as complete as I want to go at the moment, are at:
https://app.box.com/s/tmwm42be9auvgx7kz0xyo9ycyz7fez9x