Challenger Flapperons

[Ou Man]

Some info please. I have seen two Challengers with different flapperon mechanisms.

1) The flapperons are adjusted by means of a swing lever above the head of
the pilot. No further trims available.

2) The flapperons are adjusted by means of a lever above and in front of the
pilot. You have two notches for setting. The swing lever (same position as 1)
adjusts a trimtab on the elevator.



Pros and cons of these two systems??

[Ou Man]

?????????????