I align my thoughts with those of MFS (post 40), particularly with the problem of avoiding runway overruns. Landing performance involves energy – speed. Thus without knowledge of a specific touchdown speed (target) how can the pilot relate his landing performance to the approach AOA. Note that carrier landings do not suffer this dilemma (and are the land based military less concerned?).
A related problem is how to deal with speed additives required for gusty wind conditions or specific additions for ice accretion; a performance decrement due to ice might not be detectable with AOA.
Originally Posted by
formulaben
... then you'll SEE the disparity between your planned Vref versus your AoA.
Surely this detracts from the advantage of using AOA, you require both AOA and speed to complete a safe approach.
The compromise of using speed and AOA to alleviate the concerns cited above might increase workload and for the inexperienced pilot creates opportunity for distraction and error.
Last edited by PEI_3721; 29th Oct 2006 at 14:04.