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Variations of the driptorch can be attached to off-road vehicles, such as tractors, to ignite a fire while driving slowly along the ignition line. Another variant of the driptorch is the helitorch , which is attached to a helicopter and is used to ignite fire from the air.
Piasecki Helicopter – acquired by Boeing and became Boeing Vertol [39] Revolution Helicopter Corporation (defunct) – went out of business in November 1999; Robinson Helicopter [18] RotorWay International – produces kit helicopters [28] Sikorsky Aircraft [56] Schweizer Aircraft – acquired by Sikorsky Aircraft in 2004 and closed down in ...
The helicopter version features a dry sump oil system and a turbocharger option increasing power to 160 hp (119 kW). [1] All components of the engine are cast and manufactured at RotorWay Foundries, except the Mallory Ignition and Dell'Orto carburetor.
Petroleum Helicopters International, Inc. (PHI), is an American commercial helicopter operator, founded in 1949, by Robert L. Suggs. [2] The company is based in Lafayette, Louisiana and provides service for the oil and gas industry , aeromedical services , pilot training and aircraft maintenance .
It included 6 light helicopters, 4 medium helicopters, 10 fixed wing firebombers, 1 infra-red line scanning fixed wing aircraft and 1 light reconnaissance twin engine fixed wing aircraft. [ 15 ] The introduction of heavy firebombing helicopters like the Erickson S-64 Air Crane ( Elvis ) that could lift and carry 9500 litres of water and had a ...
In response, Robinson Helicopter Company instituted stringent quality procedures and requirements, and replaced all main rotor blades on the fleet of 33 helicopters in service at the time. [ 26 ] In the early 1980s, the R22 experienced a number of student-pilot related accidents due to the R22's use as a primary flight trainer.
The Kopp–Etchells effect is a sparkling ring or disk that is sometimes produced by rotary-wing aircraft when operating in sandy conditions, particularly near the ground at night. The name was coined by photographer Michael Yon to honor two soldiers who were killed in combat; Benjamin Kopp, a US Army Ranger, and Joseph Etchells, a British soldier.
Piasecki H-21 cockpit. Piasecki Helicopter designed and successfully sold to the United States Navy a series of tandem rotor helicopters, starting with the HRP-1 of 1944. The HRP-1 was nicknamed the "flying banana" because of the upward angle of the aft fuselage, which ensured that the large rotors could not strike the fuselage in any flight attitude.