Is the throttle controlled by the APM during RTL? During RTL due to failsafe? I ask because I've searched in the documentation, and I can't find an answer for this.
Because a RTL due to failsafe implies that the receiver is sending a throttle command below the configured window in APM, the throttle APM uses during RTL must be either preconfigured or adjusted to hit an airspeed.
Note that I am not asking about the throttle value needed to elicit a failsafe. I am asking if APM commands a nonzero throttle during failsafe if the receiver is essentially commanding zero throttle.
When I put my plane into TRL failsafe, the throttle stays at zero.
Am I missing something?