CS AWO.A.ALS.105 Automatic speed control

ED Decision 2022/007/R

(a) An automatic landing system shall include automatic control of throttle/thrust to touchdown unless it can be shown that:

(1) the aeroplane speed can be controlled manually without an excessive workload in conditions for which the system is to be certified;

(2) with manual control of throttle/thrust, the touchdown performance limits of CS AWO.A.ALS.106(c) are achieved; and

(3) the touchdown performance is not critically affected by reasonable errors in speed control.

(b) An automatic throttle/thrust system shall provide safe operation taking into account the factors listed in CS AWO.A.ALS.106(a). The system should:

(1) adjust throttle/thrust to maintain aeroplane speed within acceptable limits (see AMC AWO.A.ALS.105(b)(1)); and

(2) provide throttle/thrust application at a rate consistent with the recommendations of the appropriate engine and airframe manufacturers.

[Issue: CS-AWO/2]

AMC AWO.A.ALS.105(b)(1) Automatic speed control

ED Decision 2022/007/R

The approach speed may be selected manually or automatically.

[Issue: CS-AWO/2]