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The Apollo Lunar Module (LM / ˈ l ɛ m /), originally designated the Lunar Excursion Module (LEM), was the lunar lander spacecraft that was flown between lunar orbit and the Moon's surface during the United States' Apollo program.
Vortex lift provides high lift with increasing AoA at landing speeds and in manoeuvring flight. A high AoA needed to meet landing requirements has, in the past, restricted pilot visibility and led to design complications to accommodate a drooping nose, as in the case of the Fairey Delta 2 and Concorde.
The Roswell incident is a conspiracy theory which alleges that the 1947 crash of a United States Army Air Forces balloon near Roswell, New Mexico was actually caused by an extraterrestrial spacecraft.
The airplane, a McDonnell Douglas DC-10-10 (registration N1819U [6]), was delivered in 1971 and owned by United Airlines since then.Before departure on the flight from Denver on July 19, 1989, the airplane had been operated for a total of 43,401 hours and 16,997 cycles (takeoff-landing pairs).
An excessive approach and landing speed were pointed out as probable cause of the accident. [58] On March 23, 2009, FedEx Express Flight 80, MD-11F N526FE, crashed at Narita International Airport, Japan while landing in windy conditions. Airport surveillance video showed the aircraft becoming airborne again after the first touchdown, then ...
The Delta IV Heavy (Delta 9250H) was an expendable heavy-lift launch vehicle, the largest type of the Delta IV family. It was the world's third highest-capacity launch vehicle in operation at the time of its retirement in 2024, behind NASA 's Space Launch System and SpaceX 's Falcon Heavy and closely followed by CASC 's Long March 5 .
The Convair F-102 Delta Dagger [N 2] is an interceptor aircraft designed and produced by the American aircraft manufacturer Convair.A member of the Century Series, the F-102 was the first operational supersonic interceptor and delta-wing fighter operated by the United States Air Force (USAF).
JD-1 Dyke Delta - a small version, with 1+2 seating and fixed landing gear, used to generate and verify delta-wing and tailless-configuration flight characteristics. First flight July 1962; destroyed June 1964. [4] JD-2 Dyke Delta - an updated and enlarged version, with 1+3 seating and retractable landing gear. Debuted at Experimental Aircraft ...