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An oleo strut is a pneumatic air–oil hydraulic shock absorber used on the landing gear of most large aircraft and many smaller ones. [1] This design cushions the impacts of landing and damps out vertical oscillations.
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.
Three seconds after touchdown the nose gear strut was compressed. At this stage the right gear strut compression signal had not yet been sensed. Almost simultaneously with the touchdown of the nose landing gear, the crew put the engines into reverse thrust and applied the mechanical brakes. [11] Wreckage from another view
A Delta Air Lines flight landed with its “nose landing gear up” at Charlotte Douglas International Airport in North Carolina on Wednesday morning, the FAA says.
The main landing gear consists of sprung fibreglass gear legs with 5X5.00 tires as standard on graphite wheel rims. Larger 6X6.00 tires are optional. The nose gear is a single-fork design also made from fibreglass. Nose gear suspension is a compressed rubber donut system. [1]
Nose section Center section Example 717, 727, 737: 6 wheels [1x2]+[2x2] A Boeing 737 from Southwest Airlines: 747: 18 wheels [1x2]+[4x4] 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 ...
The actuator rods for the landing gear's oleo struts are visible behind the main struts. The Ju 288's intricate main landing gear system's design proved to be troublesome, possessing twin vertical members comprising the main "Y-shaped" retraction strut unit, directly behind a single oleo strut, [2] for each pair of twinned wheels mounted ...
Welch's goal was to design cheap and functional light aircraft. The aircraft is a strut-braced high-wing monoplane with an enclosed cabin with side-by-side seats for two. It is similar in appearance to the Aeronca C-3, save for the wing struts. It had a steerable tailwheel landing gear and a nose-mounted engine.