A METHOD OF EXTENDING AIRCRAFT UNDERCARRIAGES IN EMERGENCY MODE

摘要

The invention relates to a method of actuating undercarriage latching boxes (106, 206, 306) and associated hatch latching boxes (109, 209, 309) of an aircraft in an emergency mode, the latching boxes having at least one feed port and at least one unlatching member that is operable when the port is fed with fluid under pressure, the aircraft also being provided with a hydraulic braking circuit (B1). According to the invention, the method includes connecting at least one tapping circuit (500) to the braking circuit of the aircraft in association with an isolation valve (400; 501) that is kept, in a normal mode, in an isolation state and that can be controlled to be placed in an open state in which at least some of the feed ports of the latching boxes are fed by the tapping circuit connected to the braking circuit.