[Paparazzi-devel] Reply to Constant ground speed and altitude control (Rokas Adiklis)

[Chris]

I have implemented a similar approach as the one in the nav.c file.
What i do is set a minimum groundspeed in the airframe file or within 
the flight plan
and then if the groundspeed falls below this value the cruising throttle 
is increased.
When i fly downwind obviously the control loop does not restrict 
grounspeed so the plane can adjust the throttle as usual to maintain 
altitude.
In this case the groundspeed loop is deactivated like it is not there at 
all (normal Paparazzi autopilot operation.
Chris