Factors to control
Throughout the landing procedure, there are 3 main aspects we have to control:
The vertical location of the aircraft
The horizontal location of the aircraft
The approach speed of the aircraft
Within each stage of the landing procedure, each of the 3 main aspects are controlled differently. Here are the requirements at each stage:
Transition stage
Vertical: controlled by path manager
Horizontal: controlled by path manager
Speed: does not need to be controlled
Slope stage
Vertical: must be constantly and consistently changing
Horizontal: controlled by path manager
Speed: must be set as a certain approach speed (depends on current wind)
Flare stage
Vertical: throttle must be at idle to decrease altitude
Horizontal: controlled by path manager
Speed: pitch up to slow flight (a couple of km/hr above stall speed)
Decrab stage
Vertical: throttle must be at idle to decrease altitude
Horizontal: heading must be aligned with runway
Speed: pitch up to slow flight (a couple of km/hr above stall speed)
Touchdown stage
Vertical: does not need to be controlled
Horizontal: heading must be aligned with runway
Speed: throttle turned off
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