Aircraft landing gear

A hydraulic supply (HS) (1) for a main landing gear's brakes has a hydraulic pump (HP) (12) driven by a landing gear wheel (LGW) (14). The HP sits directly on the LGW, i.e. on the wheel hub in a rim cavity of the LGW. The pump may fit on a nose landing gear (13) and be linked to the HS via hydraulic pipes (15,17,18). The HP has a device for adjusting volume of supply, designed as an axial piston pump with an adjustable piston stroke mechanism. The hydraulic supply has a main pump driven by an electric motor (3). The adjusting device has an electric operating device and runs by itself without electrical operation into an idling position, in which the pump's volume supply is at zero.