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A Boeing 747-400's main landing gear. Note the toes-up bias angle of the bogies on the wing gear, to ensure correct stowage upon retraction: 707, 720, 757, 767, 787: 10 wheels [1x2]+[2x4] A Boeing 757-200 from British Airways: 777: 14 wheels [1x2]+[2x6] A Boeing 777-200 from United Airlines.
The landing gear represents 2.5 to 5% of the maximum takeoff weight (MTOW) and 1.5 to 1.75% of the aircraft cost, but 20% of the airframe direct maintenance cost. A suitably-designed wheel can support 30 t (66,000 lb), tolerate a ground speed of 300 km/h and roll a distance of 500,000 km (310,000 mi) ; it has a 20,000 hours time between overhaul and a 60,000 hours or 20 year life time.
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail. [ 1 ] [ 2 ] The term taildragger is also used.
Undercarriage is the part of a moving vehicle that is underneath the main body of the vehicle. The term originally applied to this part of a horse-drawn carriage, and usage has since broadened to include: The landing gear of an aircraft. The chassis of an automobile. The tractor treads of a tractor or tank. The underframe of a locomotive
Tricycle gear is a type of aircraft undercarriage, or landing gear, that is arranged in a tricycle fashion. The tricycle arrangement has one or more nose wheels in a single front undercarriage and two or more main wheels slightly aft of the center of gravity. Tricycle gear aircraft are the easiest for takeoff, landing and taxiing, and ...
Wheel-well stowaways are individuals who attempt to travel in the landing gear compartment, also known as the wheel bay or undercarriage of an aircraft. Between 1947 and June 2015, a U.S. Federal Aviation Administration (FAA) researcher had documented 113 such attempts on 101 flights. These 113 people were all male and predominantly under age ...
Aircraft with skid landing gear (109 P) Pages in category "Aircraft undercarriage" The following 10 pages are in this category, out of 10 total.
Aircraft with retractable conventional landing gear (534 P) Pages in category "Aircraft with conventional landing gear" The following 27 pages are in this category, out of 27 total.