peter-h
Line Up and Wait
Have a look here.
They are basically saying that the KAP140 will drive the trim servo in an uncontrolled manner as soon as the AP button is pressed, when on the ground.
The KFC225 certainly doesn't do that even though it is a similar system.
On mine, the only way to make the pitch trim servo run is to either subject the pitch servo to a "torque" (in flight, or by pushing/pulling on the yoke either on the ground or in flight for several seconds), or of course by operating the electric trim switch.
They are basically saying that the KAP140 will drive the trim servo in an uncontrolled manner as soon as the AP button is pressed, when on the ground.
The KFC225 certainly doesn't do that even though it is a similar system.
On mine, the only way to make the pitch trim servo run is to either subject the pitch servo to a "torque" (in flight, or by pushing/pulling on the yoke either on the ground or in flight for several seconds), or of course by operating the electric trim switch.