četvrtak, 18. ožujka 2010.

C-130 Hercules

The Lockheed C-130 Hercules is a four-engine turboprop military transport aircraft designed and built originally by Lockheed, now Lockheed Martin. Capable of using unprepared runways for takeoffs and landings, the C-130 was originally designed as a troop, medical evacuation, and cargo transport aircraft. The versatile airframe has found uses in a variety of other roles, including as a gunship, for airborne assault, search and rescue, scientific research support, weather reconnaissance, aerial refueling, maritime patrol and aerial firefighting. It is the main tactical airlifter for many military forces worldwide. Over 40 models and variants of the Hercules serve with more than 50 nations.

During its years of service the Hercules family has participated in countless military, civilian and humanitarian aid operations. The family has the longest continuous production run of any military aircraft in history. In 2007, the C-130 became the fifth aircraft—after the English Electric Canberra, B-52 Stratofortress, Tupolev Tu-95, and KC-135 Stratotanker—to mark 50 years of continuous use with its original primary customer, in this case, the United States Air Force. The C-130 is also the only military aircraft to remain in continuous production for 50 years with its original customer, as the updated C-130J Super Hercules.

In the 1970s, Lockheed proposed a C-130 variant with turbofan engines rather than turboprops, but the US Air Force preferred the takeoff performance of the existing aircraft. In the 1980s, the C-130 was intended to be replaced by the Advanced Medium STOL Transport project. The project was canceled and the C-130 has remained in production.

In the 1990s, the improved C-130J Super Hercules was developed by Lockheed (later Lockheed Martin). This model is the newest version and the only model in production. Externally similar to the classic Hercules in general appearance, the J model has new turboprop engines, six-bladed propellers, digital avionics, and other new systems.

Specifications (C-130H)

General characteristics

  • Crew: 5: (two pilots, navigator, flight engineer and loadmaster)
  • Capacity:
  • Payload: 45,000 lb (20,000 kg)
  • Length: 97 ft 9 in (29.8 m)
  • Wingspan: 132 ft 7 in (40.4 m)
  • Height: 38 ft 3 in (11.6 m)
  • Wing area: 1,745 ft² (162.1 m²)
  • Empty weight: 75,800 lb (34,400 kg)
  • Useful load: 72,000 lb (33,000 kg)
  • Max takeoff weight: 155,000 lb (70,300 kg)
  • Powerplant:Allison T56-A-15 turboprops, 4,590 shp (3,430 kW) each

Performance

  • Maximum speed: 320 knots (366 mph, 592 km/h) at 20,000 ft (6,060 m)
  • Cruise speed: 292 kn (336 mph, 540 km/h)
  • Range: 2,050 nmi (2,360 mi, 3,800 km)
  • Service ceiling: 23,000 ft (7,000 m)
  • Rate of climb: 1,830 ft/min (9.3 m/s)
  • Takeoff distance: 3,586 ft (1,093 m) at 155,000 lb (70,300 kg) max gross weight; 1,400 ft (427 m) at 80,000 lb (36,300 kg) gross weight

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