Summarising the adaptation of basic control law objectives:
- Ground phase : ground mode
Direct relationship between stick and elevator
available before lift-off and after touch-down
- Take-off phase : take-off mode
For smooth transition, blend of ground phase law
and Nz command law over 5 seconds after lift off.
- Landing phase : landing mode
At 50ft the attitude is memorized as reference pitch
attitude.
At 30ft this value is progressively reduced to 2°
nose down to induce gentle positive pilot action for
a conventional flare.
Also note:
Sidestick free with pedal deflection results in stabilized
sideslip and bank angle facilitating “de-crabbing” in
crosswind landings.