BACKUP GROUP FOR REACTION AIRCRAFT AND METHOD FOR PROVIDING BACKUP ENERGY ON BOARD A REACTION AIRCRAFT

摘要

P The invention relates to an emergency unit 28 intended to supply emergency energy on board a jet aircraft comprising high speed rotors 14 and low speed 22, this group being intended to operate above operating altitudes of auxiliary power units. A power outlet 56 is produced on the low speed rotor of the jet engine to drive a standby group 28 intended to supply electrical energy and / or hydraulic energy on board the aircraft in order to maintain the control of the latter in emergency conditions during which the auxiliary power unit is not operational or cannot provide enough energy to maintain the on-board hydraulic and electrical energy requirements for non-interruptible loads using electrical and hydraulic power. /P P Field of application: back-up systems for controlling aircraft, aircraft, etc. /P