helicopter equipped with a device for polarization of feedback with respect to the rate of block for the stabilita'of manoeuvre on the axis of pitch and the feeling of the load and method for cont.rollo of the helicopter

摘要

The longitudinal cyclic pitch channel of a helicopter has a negative pitch rate feedback bias added thereto when flying at higher speeds, thereby to stabilize the pitch axis against aft-load maneuvering instability and/or to induce a requirement for the pilot to provide a countermanding longitudinal cyclic pitch input through his cyclic pitch stick, the normal feed force of which provides an indication to him of the loading of the rotor as a consequence of undergoing pitch rate maneuvers.