The Lockheed C-130 Hercules is a four-engine turboprop cargo aircraft and the main tactical airlifter for military forces worldwide. Over 40 models and variants of the Hercules serve with more than 50 nations. In December, 2006, the C-130 will become the second aircraft (after the B-52 Stratofortress in January, 2005) to mark 50 years of continuous use with its original primary customer (in this case, the United States Air Force).
Capable of short takeoffs and landings from unprepared runways, the C-130 was designed as a troop transport and cargo aircraft. The versatile airframe has found uses in a variety of other roles, including airborne assault, as a gunship, search and rescue, weather reconnaissance, aerial refuelling, aerial firefighting and MEDEVAC. The Hercules family has the longest continuous production run of any military aircraft in history. During more than 50 years of service, the family has established a solid record of reliability and durability, participating in military, civilian and humanitarian aid operations.
The Lockheed design team was led by Willis Hawkins starting with a 130 page proposal for the Lockheed 82.Rhodes, Jeff, “Willis Hawkins and the Genesis of the Hercules”, Code One Magazine, Hall Hibbard, Lockheed vice president and chief engineer, saw the proposal and directed it to Kelly Johnson, who remarked when he saw the proposal, "If you sign that letter, you will destroy the Lockheed Company." Both Hibbard and Johnson signed the proposal and the company got the contract on July 2, 1951.Boyne, Walter J., Beyond the Horizons: The Lockheed Story. St. Martin's Press: New York, 1998.
The initial production model, the C-130A, was powered by Allison T56 turboprops with 3-blade propellers. Deliveries began in December of 1956, continuing until the introduction of the C-130B model in 1959. Some A models were redesignated C-130D after being equipped with skis and for jet-assisted takeoff. The newer C-130B had ailerons with more boost — 3,000 versus 2,050 lbf/in² (21 versus 14 MPa) — as well as uprated engines and four-bladed propellers that were standard until the late 1990s. The performance gains over the C-130A gave the C-130B the reputation of being the design's 'sports car' model.
The extended range C-130E model entered service in 1962. The increased range was achieved by underwing 5,150 litre (1,360 US gallon) fuel tanks and more powerful Allison T-56-A-7A turboprops. The E model also featured structural improvements, avionics upgrades and a higher gross weight.
The KC-130 tankers, originally C-130Fs procured for the US Marine Corps (USMC) in 1958 (under the designation GV-1), are equipped with a removable 13,626 litre (3600 US gallon) stainless steel fuel tank carried inside the cargo compartment. The two wing-mounted hose and drogue aerial refueling pods each transfer up to 19 litres per second (equivalent to 300 US gallons per minute) to two aircraft simultaneously, allowing for rapid cycle times of multiple-receiver aircraft formations, (a typical tanker formation of four aircraft in less than 30 minutes). The US Navy's C-130G has increased structural strength allowing higher gross weight operation.
The C-130H model has updated Allison T56-A-15 turboprops, a redesigned outer wing, updated avionics and other minor improvements. The H model remains in widespread use with the US Air Force (USAF) and many foreign air forces. Initial deliveries began in 1964, remaining in production until 1996. An improved C-130H was introduced in 1974. The equivalent model for export to the UK is the C-130K, known by the Royal Air Force (RAF) as the Hercules C.1. The C-130H-30 (Hercules C.3 in RAF service) is a stretched version of the original Hercules, achieved by inserting a 2.54 m plug aft of the cockpit and a 2.03 m plug at the rear of the fuselage.
The HC-130N & P are long range search and rescue variants used by the USAF Aerospace Rescue and Recovery Service. Equipped for deep deployment of pararescue men (PJ's), survival equipment, and aerial refueling of combat rescue helicopters (see KC-130H), they are usually the on-scene command aircraft for combat SAR missions. Early versions were equipped with the Fulton surface-to-air recovery system, designed to pull a person off the ground using a wire strung from a helium balloon. The John Wayne movie The Green Berets features its use, and The Perfect Storm depicts a real life SAR mission. The Fulton system was later removed when aerial refueling of helicopters proved safer and more versatile.
The C-130R and C-130T are US Navy and USMC models, both equipped with underwing external fuel tanks. The C-130T is similar, but has numerous avionics improvements over the R model and is fully night-vision system compatible. In both models, USMC aircraft are equipped with Allison T-56-A-16 engines. The USMC versions are designated KC-130R or KC-130T when equipped with underwing refueling pods and pylons.
The C-130J is the newest version of the Hercules and the only model still produced. Externally similar to the classic Hercules, the J model is in fact a radically different aircraft. These differences include new Rolls-Royce Allison AE2100 turboprops with six-bladed composite scimitar propellers, digital avionics (including head-up displays for each pilot), reduced crew requirements (2 pilots—no navigator or flight engineer), increased reliability and up to 27% lower operating costs. The C-130J is also available in a standard-length or stretched C-130J-30 version. Lockheed received the launch order for J model from the RAF, who ordered 25 aircraft, with first deliveries beginning in 1999. The RAF calls the C-130J the Hercules Mk 5 and the stretched C-130J-30 the Hercules Mk 4.
The largest operator of the new model will be the USAF, who are ordering the aircraft in increasing numbers, although as of 2005 the US Congress announced that C-130J acquisition would be dramatically cut back. Current operators of the C-130J are the USAF, United States Marine Corps (KC-130J tanker), US Air National Guard, US Coast Guard, Royal Air Force, Royal Australian Air Force, Danish Air Force and the Italian Air Force.
Lockheed also offered leasing of four C-130J to the German Luftwaffe, who is in need for a Transall-Replacement until the Airbus A400M is available in 2010.
Indian Air Force is planning to buy 12-13 C-130J for its special operations. A tender was issued July 5, 2006 to replace the Canadian Forces CC-130E and H models with 17 new airlifters Airlift Capability Project - Tactical MERX website - Government of Canada. The C-130J and A400M are expected to be competing for the Canadian order.
The Hercules also holds the record for the largest and heaviest airplane to land on an aircraft carrier. In November 1963, a C-130 landed without using the ship's arresting gear on the USS Forrestal (CVA-59). The pilot, Lt. James Flatley III, was awarded the Distinguished Flying Cross for his participation. The tests were highly successful, but the idea was considered too risky for routine "Carrier On-board Delivery" (COD) operations. Instead, the C-2 Greyhound was developed as a dedicated COD aircraft. The Hercules used in the test, most recently in service with VMGR-352 until 2005, is now part of the collection at the National Museum of Naval Aviation at NAS Pensacola, Florida.
The MC-130 variant carries and deploys what are currently the world's largest conventional bombs, the BLU-82 "daisy cutter" and GBU-43/B Massive Ordnance Air Blast bomb. Daisy cutters were used during the Vietnam War to clear landing zones for helicopters and to eliminate minefields and have recently even been proposed for anti-personnel use. The weight and size of the weapons make existing bomber aircraft impossible or impractical for operational use.
A prominent C-130T aircraft is Fat Albert, the support aircraft for the US Navy Blue Angels flight demonstration team. Although Fat Albert supports a Navy squadron, its crew consists solely of USMC personnel. At some air shows featuring the flight team, Fat Albert takes part, performing flyovers and sometimes demonstrating its jet-assisted take off (JATO) capabilities.
The C-130 is generally a highly reliable aircraft. The Royal Air Force recorded an accident rate of about one aircraft loss per 250,000 flying hours over the last forty years, making it the safest aircraft they operatedAircraft Air Accidents and Damage Rates - Defence Analytical Services Agency.
Lockheed Corporation | U.S. military transport aircraft 1950-1959 | United States Marine Corps equipment | Vietnam War aircraft
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