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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
Landing platforms are the two platforms (at the two ends) that house the curved sections of the tracks, as well as the gears and motors that drive the stairs. The top platform usually contains the motor assembly and the main drive gear, while the bottom holds the return gear. These sections also anchor the ends of the escalator truss.
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.
This image is a derivative work of the following images: File:Manual_Dogleg.svg licensed with PD-self . 2009-01-11T14:21:03Z Syed 287x285 (13891 Bytes) {{Information |Description={{en|1=Diagram of a Manual gear layout (Dogleg).}} |Source=Own work by uploader |Author=[[User:Syed|Syed]] |Date=2009-01-11 |Permission= |other_versions= }}
Landing gear/flaps are lowered, and landing checks are completed. When abeam (directly aligned with) the landing area on downwind, the aircraft is 180° from the ship's course and about 1.1 nautical miles (2.0 km; 1.3 mi) to 1.3 nautical miles (2.4 km; 1.5 mi) from the ship, a position known as "the 180" (because of the angled flight deck ...
The following other wikis use this file: Usage on id.wikipedia.org Jalur Utara Selatan (MRT Singapura) Usage on ja.wikipedia.org MRT南北線; DOTピクトグラム
The airport diagrams are part of the Aeronautical Information Publication (AIP) which is updated on a 28-day cycle as per the ICAO.For the FAA's digital - Terminal Procedures Publication/Airport Diagrams, this causes a change in the URL involving four numbers: the first two represent the year (09 for 2009, 10 for 2010) and the second two represent the current AIRAC cycle (01 through 13).