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The FAA states "The height–velocity diagram or H/V curve is a graph charting the safe/unsafe flight profiles relevant to a specific helicopter. As operation outside the safe area of the chart can be fatal in the event of a power or transmission failure it is sometimes referred to as the dead man's curve ."
In military terminology a landing zone (LZ) is an area where aircraft can land. In the United States military, a landing zone is the actual point where aircraft, especially helicopters, land (equivalent to the commonwealth landing point.) [1] In commonwealth militaries, a landing zone is the cartographic (numeric) zone in which the landing is ...
Downtown Manhattan Heliport at Pier 6 in the East River. The Downtown Manhattan Heliport (IATA: JRB, ICAO: KJRB, FAA LID: JRB) (Downtown Manhattan/Wall St. Heliport) is a helicopter landing platform at Pier 6, on the East River, in the Financial District of Lower Manhattan in New York City.
A helipad in Ireland Helipad area scheme. A helipad is the landing area of a heliport, in use by helicopters, powered lift, and vertical lift aircraft to land on surface.. While helicopters and powered lift aircraft are able to operate on a variety of relatively flat surfaces, a fabricated helipad provides a clearly marked hard surface away from obstacles where such aircraft can land safely.
An air assault involves a customized assault force that is assembled on the pick-up zone and staged for sequential transport to a landing zone (LZ). The idea is to use the helicopters to transport and land a large number of troops and equipment in a relatively short amount of time, in order to assault and overwhelm an objective near the LZ.
Landing is the last part of a flight, where a flying aircraft or spacecraft (or animals) returns to the ground. When the flying object returns to water, the process is called alighting , although it is commonly called "landing" and "touchdown" as well.
Landing gear/flaps are lowered, and landing checks are completed. When abeam (directly aligned with) the landing area on downwind, the aircraft is 180° from the ship's course and about 1.1 nautical miles (2.0 km; 1.3 mi) to 1.3 nautical miles (2.4 km; 1.5 mi) from the ship, a position known as "the 180" (because of the angled flight deck ...
A helitack helicopter will launch with a crew on board, drop them in the vicinity of the fire (or "incident") where they will begin clearing a firebreak with standard hand tools, while the helicopter can then support the team with water drops, either with a Bambi bucket or airframe-mounted water tanks, or ferry in additional personnel (e.g ...