Turboprop engines also produced much more power for their weight than piston engines. It gave the aircraft greater range than a turbojet engine as it used less fuel. A notable advance for large aircraft was the introduction of a turboprop powerplant, the Allison T56 which was developed for the C-130. Unlike transports derived from passenger airliners, it was to be designed specifically as a combat transport with loading from a hinged loading ramp at the rear of the fuselage. The new transport would have a capacity of 92 passengers, 72 combat troops or 64 paratroopers in a cargo compartment that was approximately 41 ft (12 m) long, 9 ft (2.7 m) high, and 10 ft (3.0 m) wide. Thus, on 2 February 1951, the United States Air Force issued a General Operating Requirement (GOR) for a new transport to Boeing, Douglas, Fairchild, Lockheed, Martin, Chase Aircraft, North American, Northrop, and Airlifts Inc. The Korean War showed that World War II-era piston-engine transports- Fairchild C-119 Flying Boxcars, Douglas C-47 Skytrains and Curtiss C-46 Commandos-were no longer adequate. ( February 2014) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This section needs additional citations for verification. The C-130 Hercules is the longest continuously produced military aircraft at more than 60 years, with the updated Lockheed Martin C-130J Super Hercules currently being produced. In 2007, the C-130 became the fifth aircraft to mark 50 years of continuous service with its original primary customer, which for the C-130 is the United States Air Force.
During its years of service, the Hercules has participated in numerous military, civilian and humanitarian aid operations. in 1956, followed by Australia and many other nations. More than 40 variants of the Hercules, including civilian versions marketed as the Lockheed L-100, operate in more than 60 nations. It is now the main tactical airlifter for many military forces worldwide. The versatile airframe has found uses in other roles, including as a gunship ( AC-130), for airborne assault, search and rescue, scientific research support, weather reconnaissance, aerial refueling, maritime patrol, and aerial firefighting. Capable of using unprepared runways for takeoffs and landings, the C-130 was originally designed as a troop, medevac, and cargo transport aircraft. The Lockheed C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin).
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