When an airspeed sensor is not used, during a takeoff, the pitch angle
is asymptotically driven to 0 as the takeoff altitude is approached.
Some airplanes will then stop climbing and fail to reach altitude.
To prevent an indefinite wait for the takeoff altitude to be reached, a
dedicated level-off timeout has been introduced.
- TAKEOFF and AUTO flight modes now should have identical takeoff
- Prevent behaviour switching past climb altitude in TAKEOFF mode.
- Refactor set_pitch_min/max methods.
Max was already there, now renamed.
Min is newly introduced.
behaviour.
- Remove enforcement of min takeoff throttle logic from servos.cpp.
It is now handled only by takeoff.cpp.
- Take TKOFF_LVL_ALT into consideration in AUTO as well.
- Fixed pitch setpoint when TKOFF_ROTATE_SPD>0.
- Roll navigation in mode TAKEOFF during climb should now work again.
- Now the TAKEOFF loiter waypoint is set by the bearing of the
aircraft while on TKOFF_LVL_ALT, as in the last stable release, instead
of TKOFF_ALT.
- Using TRIM_THROTTLE in takeoffs, when TKOFF_THR_MIN==0
This is a rework so that servos.cpp is responsible for setting the
throttle limits under more circumstances and always notifies TECS when
it does so.
Additionally, the TAKEOFF mode has been improved with a new parameters
TKOFF_MODE and TKOFF_THR_MIN that extend the throttle behaviour.