Re: [Paparazzi-devel] Plane drops after take off on energyadaptative loop

[Tobias]

Hi Joseph,

energy-loop is the way to go, just to answer your last question. :-)

regarding the unwonted behavior - first thing to check is: is your airframe well tuned? I mean is it holding altitude and speed well. after a wile?

If so you should check probably the values for ( ) against the flight log for straight flight and climb.

<!-- auto throttle inner loop -->
	<define name="AUTO_THROTTLE_NOMINAL_CRUISE_THROTTLE" value="0.3"/>
	<define name="AUTO_THROTTLE_NOMINAL_CRUISE_PITCH" value="0."/> <!-- default 0 -->
	<define name="AUTO_THROTTLE_CLIMB_THROTTLE_INCREMENT" value="0.1" unit="%/(m/s)"/>

in the scenario you described you are changing from fixed values to the energy loop - its always a good idea to have the plane in a rather similar attitude/speed to do this. So what is your alt for stby? just thing about it - if it is the same alt as your deroute from the previous block try to increase the stby alt or decrease the deroute alt 

      <exception cond="GetPosAlt() > ground_alt+50" deroute="Standby"/>

this allows the plane to catch up.

cheers Tobi