Control system for redundant swashplate drive

Details Control system for redundant swashplate drive Control system for redundant swashplate drive

B - Operations, Transporting

64

C

244/15

B64C 27/12 (2006.01) B64C 27/605 (2006.01) B64C 27/72 (2006.01)

Patent

CA 1109046

- 1 - CONTROL SYSTEM FOR REDUNDANT SWASHPLATE DRIVE Abstract: The present invention relates to a control system for a redundant swashplate drive in a helicopter. The helicopter has a rotor driving mast which in turn is driven by a transmission and wherein a swashplate is individually linked to pitch horns on each rotor blade with at least four actuators coupled to the swashplate. Three of the actuators normally control the attitude and pitch of the swashplate. A separate power unit is provided for each of the actuators with each power unit being independently driven from the transmission. A unit is provided to shift control of the swashplate from one of the three actuators to a fourth actuator upon one actuator becoming disabled.

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