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On 6 November, a B-52B (tail number 53-0382) from the 93rd Bombardment Wing crashed and was damaged beyond repair upon landing at Castle AFB. The aircraft was performing touch and go landings and the latch on the landing gear lever failed resulting in the landing gear retracting while the airplane was still on the runway.
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.
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.
A USAF Boeing B-29 Superfortress, 44-87651, of the 99th Bomb Squadron, 9th Bomb Group, 9th Bomb Wing, carrying a Mark 4 nuclear bomb, suffers runaway propellers and landing gear retraction problems during takeoff at Fairfield-Suisun Air Force Base, Fairfield, California; concerned that the aircraft cannot clear rising terrain ahead, aircraft ...
In September 2007, two separate accidents due to similar landing gear failures occurred within three days of each other on Bombardier Dash 8 Q400 aircraft operated by Scandinavian Airlines System (SAS). A third accident, again with a SAS aircraft, occurred in 27 October 2007, leading to the withdrawal of the type from the airline's fleet.
Maximum landing gear extended speed. This is the maximum speed at which a retractable gear aircraft should be flown with the landing gear extended. [7] [8] [9] [20] V LO: Maximum landing gear operating speed. This is the maximum speed at which the landing gear on a retractable gear aircraft should be extended or retracted. [7] [9] [20] V LOF ...
Bell XP-39B Airacobra, 38–326, modified from prototype XP-39, on test flight out of Buffalo, New York, suffers failure of main gear legs to retract fully, stopping 18 inches (460 mm) short of flush stowage. Pilot, Wright Field P-39 project officer George Price, saves prototype with deft belly-landing, damage mostly limited to the propeller. [2]
The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since the 1950s, and NASA for nearly 50 years.