REMOTE FLIGHT CONTROL SYSTEM FOR PILOTLESS HELICOPTER

摘要

PURPOSE: To prevent a remote flight control system of a pilotless helicopter having a function of increasing the stability of the angular speed in one, two or three axial directions or a function of holding the attitude from the automatic vibtation and resonance phenomenon of the helicopter body on the ground which may be generated in the taking-off and landing. ;CONSTITUTION: A mixing amplifier 4 of flight controller provided with a taking- off and landing detecting means 9 for detecting whether a helicopter is taking- off or landing changes over the level of a signal Se' mixed with a maneuvering signal Sb to zero or small one when the output Sd of the taking-off and landing detecting means 9 is under the landing condition. On the other hand, a plurality of signal processing sections differing in the signal processing properties may be provided to selectively change over these outputs for mixing according to the Sd. A mechanical switch or pressure sensor turned on/off by its own weight is provided on a skid of the hericopter for example to constitute the taking-off and landing detecting means 9.;COPYRIGHT: (C)1996,JPO