SKI-WHEELED RETRACTABLE LANDING GEAR OF AIRCRAFT Russian patent published in 2022 - IPC B64C25/00 

FIELD: transport machine building.

SUBSTANCE: invention relates to machine building and transportation, namely, to aircraft landing devices and is intended for takeoff, landing and movement of aircraft. Proposed retractable ski-wheel landing gear comprises hydraulic cylinders and wheels. Wheels are mounted on stocks of hydraulic cylinders, housings of which are hingedly mounted on a power frame arranged at the bottom of the aircraft fuselage, containing ski-wheel, movable and support beams. Ski-wheel beams are located parallel to longitudinal axis of fuselage on both sides of aircraft and mounted to ends of beams movable perpendicular to longitudinal axis of fuselage. Note here that said movable beams are fitted in support beams mounted to aircraft fuselage while their displacement in support beams perpendicular to fuselage lengthwise axis is ensured by hydraulic cylinders per each movable beam. To ski-wheel beams on both sides of fuselage skis are mounted on stocks independent of wheels of hydraulic cylinders, located along plane of rotation of wheels. Axles of wheels and skis are connected with power frame by single-arm rolling levers.

EFFECT: higher safety during operation at strong crosswind.

1 cl, 4 dwg