Research on piloting principle in carrier landing

To improve the carrier aircraft landing accuracy in different recovery weights status, the pilot operation principles are investigated. Firstly, the landing control reference status is discussed, it shows that the maximum recovery weight trim status should set to be the reference status to avoid stall when fully loaded in recovery. Then, the principle of "constant angle of attack" (" A0A-hold"for short) and "constant velocity" (" V-hold" for short) are investigated through pilot-aircraft-environment close-loop simulation. It shows that in different weights recovering,the principle "AOA-hold" performs better than principle "V-hold". In principle of "V-hold", the touchdown points are divergent and the touchdown dispersion of " A0A-hold" is concentrated in the safe landing area. In "AOA-hold" controlling, the touchdown points are concentrated between -1.8 to 9.4 meters,while the landing scope of "V-hold" is between -7.2 to 17 meters. Meanwhile, the main factors affecting the pilot operational principles are analyzed, it shows that,in principle of "AOA-hold" , the pilot not only keeps the glide path steady by FLOLS lights tracking but also decreases the attitude error. Therefore, the principle of "AOA-hold" performs more steady and accurate, but it still needs to be more tested and evaluated in real flight and simulation.