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Dog-leg (stairs) A dog-leg is a configuration of stairs between two floors of a building, often a domestic building, in which a flight of stairs ascends to a quarter-landing before turning at a right angle and continuing upwards. [1] The flights do not have to be equal, and frequently are not. Structurally, the flights of a dog-leg stair are ...
An airstair is a set of steps built into an aircraft so that passengers may board and alight the aircraft. The stairs are often built into a clamshell-style door on the aircraft. Airstairs eliminate the need for passengers to use a mobile stairway or jetway to board or exit the aircraft, providing more independence from ground services.
Space Shuttle Atlantis landing after STS-122. Columbia was the first Shuttle to arrive at the SLF via the Shuttle Carrier Aircraft on March 24, 1979. The runway was first used to land a Space Shuttle on February 11, 1984, when Challenger's STS-41-B mission returned to Earth. This also marked the first landing of a spacecraft at its launch site.
The sites included Naval Air Station Bermuda, Lajes Air Base in Terceira island, Azores, Portugal, Zaragoza Air Base in Spain, Morón Air Base in Spain, and Istres Air Base in France. [11] All sites have runways of sufficient length to support the landing of a Space Shuttle, and included personnel from NASA as well as equipment to aid a space ...
t. e. SpaceX has privately funded the development of orbital launch systems that can be reused many times, similar to the reusability of aircraft. SpaceX has developed technologies over the last decade to facilitate full and rapid reuse of space launch vehicles. The project's long-term objectives include returning a launch vehicle first stage ...
A replica of Luna 9, the first spacecraft to land on the Moon The first image taken of the far side of the Moon, returned by Luna 3 As part of human exploration of the Moon, numerous space missions have been undertaken to study Earth's natural satellite. Of the Moon landings, Luna 2 of the Soviet Union was the first spacecraft to reach its surface successfully, intentionally impacting the Moon ...
The Grand Staircase is the chief stairway connecting the State Floor and the Second Floor of the White House, the official home of the president of the United States. The stairway is primarily used for a ceremony called the Presidential Entrance March. The present Grand Staircase, the fourth staircase occupying the same general space, was ...
Crew / cargo variants. The Dynetics Autonomous Logistics Platform for All-Moon Cargo Access ( ALPACA )—also known as Dynetics HLS [1] — (ILV) is a human spaceflight lunar lander design concept proposed in 2020/21 for the NASA Human Landing System (HLS) component of the Artemis program. Dynetics was the lead contractor for the ALPACA lander ...