main thrust
51Spanish main — Spanish Span ish, a. Of or pertaining to Spain or the Spaniards. [1913 Webster] {Spanish bayonet} (Bot.), a liliaceous plant ({Yucca alorifolia}) with rigid spine tipped leaves. The name is also applied to other similar plants of the Southwestern …
52Climate change in Washington — Main article: Climate change in the United States Digitally colored elevation map of Washington. Climate change in the American state of Washington is a subject of study and projection today. Contents …
53Space Shuttle Solid Rocket Booster — The Space Shuttle Solid Rocket Boosters (SRBs) are the pair of large solid rockets used by the Space Shuttle during the first two minutes of powered flight. They are located on either side of the orange external propellant tank. Each SRB produces …
54Canadair Sabre — infobox Aircraft name = CL 13 Sabre type =Fighter manufacturer =Canadair caption =Canadair Sabre designer = first flight = 9 August 1950 introduced = 1950 retired =1980, Portugal status = primary user = Royal Canadian Air Force more users =… …
55Piasecki X-49 — Infobox Aircraft name= X 49 Speedhawk caption= X 49A Speedhawk VTDP Technology Demonstrator in flight type = Experimental high speed compound helicopter manufacturer = Sikorsky (original airframe) Piasecki Aircraft (modifications and testing)… …
56Western Allied invasion of Germany — Infobox Military Conflict conflict= Invasion of Germany partof= Western Front, World War II caption= date= March 22 – May 11 1945 place= Germany result= Allied victory, unconditional German surrender combatant1=flag|United States|1912 flag|United …
57Military history of the United Kingdom during World War II — Periods and eras in English history Anglo Saxon period (927–1066) Norman period …
58Aerojet General X-8 — Infobox Aircraft name = X 8 Aerobee caption = Aerojet X 8 rocket type = Upper Atmospheric Research Vehicle, X plane manufacturer = Aerojet General first flight = 2 December, 1949cite book|first=Jay|last=Miller|title=The X Planes: X 1 to X… …
59jet engine — an engine, as an aircraft engine, that produces forward motion by the rearward exhaust of a jet of fluid or heated air and gases. Also called jet, jet motor. [1940 45] * * * Any of a class of internal combustion engines that propel aircraft by… …
60Lockheed L-2000 — The Lockheed L 2000 was Lockheed s entry in a government funded competition to build the United States first supersonic transport (SST) in the 1960s. The L 2000 lost the contract to the Boeing 2707, but that competing design was ultimately… …
