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USS Constellation was heavily damaged by fire while under construction on 19 December 1960. [2] [3] The carrier was in the final stages of construction at the Brooklyn Navy Yard in Brooklyn, New York when the fire began. [5] The fire broke out when a forklift operating on the hangar deck accidentally pushed its cargo into a steel plate knocking ...
By September 2017, engine testing was underway as well as testing of "control surfaces and electric, pneumatic and fire detection systems." [ 19 ] In December 2017, its first low-speed taxi test took it to 25 knots (46 km/h) on the runway, powered by its six turbofans , to test its steering, braking, and telemetry . [ 20 ]
Albert II, a rhesus monkey, became the first mammal in space aboard a U.S. V-2 rocket on June 14, 1949, and died on reentry due to a parachute failure. The first dogs in space were launched 22 July 1951 aboard a Soviet R-1V. "Tsygin" and "Dezik" reached a height of 100 km (62 mi) and safely parachuted back to Earth.
An air speed record is the highest airspeed attained by an aircraft of a particular class. The rules for all official aviation records are defined by Fédération Aéronautique Internationale (FAI), [ 1 ] which also ratifies any claims.
The Space Shuttle Challenger was destroyed 73 seconds after lift-off on STS-51-L at an altitude of 15 kilometers (49,000 ft). The investigation found that cold weather conditions caused an O-ring seal to fail, allowing hot gases from the shuttle's solid rocket booster (SRB) to impinge on the external propellant tank and booster strut. The strut ...
Rapid launch also minimized the time the aircraft carrier had to deviate from its intended course to conform to wind direction. [6] USS Saratoga using flight deck storage while landing aircraft in 1935. When the planes returned from their mission, the aircraft carrier again turned into the wind and began recovering aircraft over the stern.
The first manufactured object to achieve hypersonic flight was the two-stage Bumper rocket, consisting of a WAC Corporal second stage set on top of a V-2 first stage. In February 1949, at White Sands, the rocket reached a speed of 8,290 km/h (5,150 mph), or about Mach 6.7. [2]
In these transonic speed ranges, compressibility causes a change in the density of the air around an airplane. During flight, a wing produces lift by accelerating the airflow over the upper surface. This accelerated air can, and does, reach supersonic speeds, even though the airplane itself may be flying at a subsonic airspeed ( Mach number < 1.0).