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The B-52's US$72,000 cost per hour of flight is more than the B-1B's US$63,000 cost per hour, but less than the B-2's US$135,000 per hour. [ 232 ] The Long Range Strike Bomber program is intended to yield a stealthy successor for the B-52 and B-1 that would begin service in the 2020s; it is intended to produce 80 to 100 aircraft.
By the end of the 1990s, Menasco Aerosystems was the free world's largest producer of aircraft landing gear, with plants in California, Texas and Canada. A few of the aircraft that gear sets were made for include the A-7, F-102, C-130, C-141, the Space Shuttle, F-16, F-16E, F-18, F-18E, YF-22, B-1, C-5A, C-5B, B-52, and tip gear for the B-36.
From [1.0 B-52 Evolution] v1.0.1 / 1 of 2 / 01 jul 03 / greg goebel / public domain: The landing gear scheme was unusual and elaborate, and in fact was kept secret during development. The main landing gear was organized in four big twin-wheel trucks mounted in the fuselage. The trucks were arranged in pairs, fore and aft of the bombbay.
Fortunately, the B-52 has multiple engines, but it’s a reminder that the US military is still relying on an aircraft first flown in the 1950s that has outlasted the Cold War by more than 30 years.
The landing gear designs of the "pioneer era" 1909 Bleriot XI, and the much later Cold War B-52 strategic jet heavy bomber, were designed and each built with an unusual feature to counteract the problem: with the B-52, all four of its landing gear bogies could be steered, allowing the aircraft to land with the wheels facing the direction of ...
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.
In Sept. 2021 another B-2 at Whiteman had to make an emergency landing after the hydraulics system failed, resulting in the bomber's landing gear collapsing. The bomber's left wing dragged for ...