Set Speed

This action allows changing speeds. Various speed types are supported although not all types will work with all vehicles.

ArduPlane:

Airspeed: must be within range of min and max configured airspeed
Ground speed: sets minimum ground speed

ArduCopter:

Ground speed
Climb speed
Descent speed (speed value must be positive)

ArduRover:

Ground speed

ArduSub:

Ground speed

Under the hood

MAV_CMD_DO_CHANGE_SPEED as a COMMAND_LONG

Field Name	Type	Value	Description
param 1	float	0.0, 1.0, 2.0, 3.0	SPEED_TYPE
param 2	float	user selection	Speed in meters per second
param 3	float	NaN
param 4	float	NaN
param 5	float	NaN
param 6	float	NaN
param 7	float	NaN