Hello,

I'm totally new to this. I wonder how to define the speed APM2 uses to fly from one waypoint to another or during loitering. I read about a parameter called cruise_speed, but I do not find this parameter in Mission Planner.

So, how do I set the default speed of the plane?

Thanks and best regards

Dirk

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Do you have an airspeed sensor? 

Now, to answer your question, there are several different parameters that control things like the speed range used in fly by wire mode B, and there is a MAVlink command to change airspeed. But what you are asking about is cruse speed used during waypoints, and that is found here (screenshot) TRIM_ARSPD_CM. See also ARSPD_FBW_MIN, ARSPD_FBW_MAX, TRIM_THROTTLE, and MIN_GNDSPD_CM, among others. 

Thanks a lot Mike!

Hi Mike,

Related question: what does TRIM_THROTTLE do? It seems to be dependant on other parameters and gets changed when I change e.g. WP_SPEED_MAX. The hint balloon relates to other (probably deprecated) param.

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