RadioLink PIXHAWK - Flight Modes

Radiolink Electronic Ltd
www.radiolink.com
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controls the rotation rate for the yaw axis. The default, 4.5, like roll and pitch, will command a 200deg/sec
rotation rate.
ACRO_RP_EXPO Acro roll/pitch Expo to allow faster rotation when stick at edges
ACRO_Y_EXPO Acro yaw expo to allow faster rotation when stick at edges
ACRO_EXPO is an amount of Exponential to apply to the pilots stick inputs that only applies to ACRO mode.
By default, ACRO mode is much more responsive, even in the center-sticks positions, than the other modes,
so this parameter allows the pilot to fine-tune stick response in the control to match what they feel when they
are in other modes such as Stabilize, AltHold, PosHold, etc. The default value of 0 applies 30% expo to Roll
and Pitch demands from the pilot.
3.6.3 Altitude Hold Mode
In altitude hold mode, Copter maintains a consistent altitude while allowing roll, pitch, and yaw to be controlled
normally. This page contains important information about using and tuning AltHold.
Automatic altitude hold is a feature of many other flight modes (Loiter, Sport, etc.) so the information here
pertains to those modes as well.
Note: The flight controller uses a barometer which measures air pressure as the primary means for
determining altitude (“Pressure Altitude”) and if the air pressure is changing in your flight area due to extreme
weather, the copter will follow the air pressure change rather than actual altitude. When fitted and enabled, a
downward facing rangefinder such as LiDAR or SONAR will automatically provide even more accurate
altitude maintenance, up to the limit of the sensor.
How to control
The pilot can control the climb or descent rate of the vehicle with the throttle stick. If the throttle stick is in the
middle (40% ~ 60%) the vehicle will maintain the current altitude. Outside of the mid-throttle dead zone (i.e.
below 40% or above 60%) the vehicle will descend or climb depending upon the deflection of the stick. When
the stick is completely down the copter will descend at 2.5m/s and if at the very top it will climb by 2.5m/s.
These speeds can be adjusted with the PILOT_VELZ_MAX parameter.