- (a) Head-up display landing system (HUDLS)
The system shall provide sufficient guidance information to enable a pilot that is competent to conduct the intended operation to intercept the xLS approach path, if that capability is provided, to track it, to land the aeroplane within the prescribed limits or to perform a goaround without reference to other cockpit displays. It shall not require exceptional piloting skill to achieve the required performance. (See CS AWO.B.SACATI.113 or CS AWO.B.CATII.113 or CS AWO.B.CATIII.115(a) and (b) or CS AWO.B.CATIII.117)
- (b) The transition from approach/flare guidance to roll-out control guidance shall be smooth and shall not distract the pilot from performing the intended operation. - (c) If the autopilot is used to control the flight path of the aeroplane to intercept and establish the xLS approach path, the point during the approach at which the transition from automatic to manual flight takes place shall be identified and taken into account in the performance demonstration (see CS AWO.B.CATIII.115). The transition from autopilot to head-up guidance shall not require exceptional piloting skill, alertness, strength or excessive workload.
ED Decision 2022/007/R
It is acceptable to remove information from the HUD, provided that doing so does not cause a distraction to the pilot.
A head-up guidance landing system (HUDLS) is typically used for primary approach guidance for decision heights (DHs) down to 15 m (50 ft).
A HUDLS can be used during the following flight phases to either control the aircraft or monitor the autopilot:
- (1) take-off (if applicable); - (2) approach and landing (and roll-out, if applicable); or - (3) go-around.
[Issue: CS-AWO/2]