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English: Landing gear of an aircraft, schematic view of the retracting mechanism. Filled circles are fixed relative to the airframe. Coloured arcs denote the locus of points. 1 Hydraulic Ram 2 Hinge Mechanism 3 Strut 4 Wheel Boss 5 Wheel . 6 Fuselage/Wing
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.
The distinctive retractable main landing gear design for the FF-1 had originated with Grover Loening's employment of Grumman's future founder, Leroy Grumman, who had hired both Grumman and Jake Swirbul to work in his own aircraft firm in 1928 – after the Loening Aeronautical Engineering Company folded in the 1932–33 timeframe, Loening in ...
Pages in category "Aircraft with retractable conventional landing gear" The following 200 pages are in this category, out of approximately 535 total. This list may not reflect recent changes .
Aircraft with retractable tricycle landing gear (1,181 P) This page was last edited on 8 December 2024, at 08:42 (UTC). Text ...
Bell 429 with retractable wheel landing gear United States. Delaware State Police - 4 [52] Fairfax County Police Department - 2 [53] New York City Police Department - 1 [54] Arizona Department of Public Safety - 1 [55] Puerto Rico Department of Health - 1 [56] Tunisia. Tunisian National Guard - 3 [57]
The model designation nomenclature differs from some other Cessna models with optional retractable gear. For instance, the retractable version of the Cessna 172 was designated as the 172RG and the 177RG , whereas the retractable gear version of the Cessna 182 is the R182. Cessna gave the R182 the marketing name of "Skylane RG". [8]
The hydraulic system is also used to extend and retract landing gear, operate flaps and slats, operate the wheel brakes and steering systems. Hydraulic systems consist of engine driven pumps, fluid reservoirs, oil coolers, valves and actuators. Redundancy for safety is often provided by the use of multiple, isolated systems. [3]