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Used to support Fort Lewis, Army helicopters assisted with medical evacuations at Mount Rainier National Park on numerous occasions in the 1970s. Army helicopters were also used to insert search-and-rescue [SAR] teams into inaccessible areas on the east, north, and west sides of the mountain, lowering rangers to the ground by a cable device known as a "jungle penetrator."
An overhead crane lifts the completed S3/S4 truss inside the Space Station Processing Facility S3 truss section being hoisted by overhead cranes after milling at NASA's Michoud Assembly Facility. The STS-117 mission delivered the second starboard truss segment (S3/S4) and associated energy systems to the International Space Station (ISS). [2]
Some rotary wing aircraft are designed to stop the rotor for forward flight so that it then acts as a fixed wing. For vertical flight and hovering it spins to act as a rotary wing or rotor, and for forward flight at speed it stops to act as a fixed wing providing some or all of the lift required. Additional fixed wings may also be provided to ...
Boeing Rotorcraft Systems (formerly Boeing Helicopters and before that Boeing Vertol) is the former name of an American aircraft manufacturer, now known as Vertical Lift division of Boeing Defense, Space & Security. The headquarters and main rotorcraft factory is in Ridley Park, Pennsylvania, a suburb of Philadelphia.
To achieve pitch, opposite collective is applied to each rotor; decreasing the lift produced at one end, while increasing lift at the opposite end, effectively tilting the helicopter forward or back. [3] Tandem-rotor helicopters have the advantage of being able to hold more weight with shorter blades, since there are two sets.
the rear of the F135 engine (nozzle rotated down) that powers the Rolls-Royce LiftSystem. Instead of using separate lift engines, like the Yakovlev Yak-38, or rotating nozzles for engine bypass air, like the Harrier, the "LiftSystem" has a shaft-driven LiftFan, designed by Lockheed Martin and developed by Rolls-Royce, [3] and a thrust vectoring nozzle for the engine exhaust that provides lift ...
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