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US Air Force Lockheed C-130 Hercules, Balad Air Base, Iraq


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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 (AC-130), 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 60 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, Boeing B-52 Stratofortress, Tupolev Tu-95, and Boeing 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.
Design and development
The Korean War, which began in June 1950, showed that World War II-era piston-engine transports—Fairchild C-119 Flying Boxcars, Douglas C-47 Skytrains and Curtiss C-46 Commandos—were inadequate for modern warfare. 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 new transport would have a capacity for 92 passengers, 72 combat troops or 64 paratroopers in a cargo compartment that is approximately 41 feet (12 m) long, 9 feet (2.7 m) high, and 10 feet (3.0 m) wide. Unlike transports derived from passenger airliners, it was to be designed from the ground-up as a combat transport with loading from a ramp at the rear of the fuselage. This innovation for military cargo aircraft was first pioneered on the WW II German Junkers Ju 252 and Ju 253 "Hercules" transport prototypes in World War II. The Boeing C-97 also had a retracting ramp through clamshell doors, but could not be used for airdrops of cargo.
The Hercules also resembled a larger four-engine brother to the C-123 Provider with a similar wing and cargo ramp layout, that evolved from the Chase XCG-20 Avitruc, in turn, first designed and flown as a cargo glider in 1947. The rear ramp not only makes it possible to drive vehicles onto the plane (also possible with forward ramp on a C-124), but to airdrop or use low-altitude extraction for Sheridan tanks or even dropping improvised "daisy cutter" bombs.
A key feature was the introduction of the T56 turboprop, first developed specifically for the C-130. At the time, the turboprop was a new application of turbine engines that used exhaust gases to turn a shafted propeller, which offered greater range at propeller-driven speeds compared to pure turbojets, which were faster but thirstier. As was the case on helicopters of that era such as the UH-1 Huey, turboshafts produced much more power for their weight than piston engines. Lockheed would subsequently use the same engines and technology in the Lockheed L-188 Electra. That aircraft failed financially in its civilian configuration but was successfully adapted into the Lockheed P-3 Orion maritime patrol and submarine attack aircraft where speed and endurance of turboprops excelled.
The new Lockheed cargo plane design possessed a range of 1,100 nmi (1,300 mi; 2,000 km), takeoff capability from short and unprepared strips, and the ability to fly with one engine shut down. Fairchild, North American, Martin and Northrop declined to participate. The remaining five companies tendered a total of 10 designs: Lockheed two, Boeing one, Chase three, Douglas three, and Airlifts Inc. one. The contest was a close affair between the lighter of the two Lockheed (preliminary project designation L-206) proposals and a four-turboprop Douglas design.
The two YC-130 prototypes; the blunt nose was replaced with radar on later production models
The Lockheed design team was led by Willis Hawkins, starting with a 130 page proposal for the Lockheed L-206. Hall Hibbard, Lockheed vice president and chief engineer, saw the proposal and directed it to Kelly Johnson, who did not care for the low-speed, unarmed aircraft, and remarked, If you sign that letter, you will destroy the Lockheed Company. Both Hibbard and Johnson signed the proposal and the company won the contract for the now-designated Model 82 on 2 July 1951.
The first flight of the YC-130 prototype was made on 23 August 1954 from the Lockheed plant in Burbank, California. The aircraft, serial number 53-3397, was the second prototype but the first of the two to fly. The YC-130 was piloted by Stanley Beltz and Roy Wimmer on its 61-minute flight to Edwards Air Force Base; Jack Real and Dick Stanton served as flight engineers. Kelly Johnson flew chase in a P2V Neptune.
Production
C-130H Hercules flight deck
After the two prototypes were completed, production began in Marietta, Georgia, where over 2,300 C-130s have been built through 2009.
The initial production model, the C-130A, was powered by Allison T56-A-9 turboprops with three-blade propellers. Deliveries began in December 1956, continuing until the introduction of the C-130B model in 1959. Some A models were re-designated C-130D after being equipped with skis. The newer C-130B had ailerons with increased boost—3,000 psi (21 MPa) versus 2,050 psi (14 MPa)—as well as uprated engines and four-bladed propellers that were standard until the J-model’s introduction.
C-130A model
The first production C-130s were designated as A-models, with deliveries in 1956 to the 463d Troop Carrier Wing at Ardmore AFB, Oklahoma and the 314th Troop Carrier Wing at Sewart AFB, Tennessee. Six additional squadrons were assigned to the 322d Air Division in Europe and the 315th Air Division in the Far East. Additional aircraft were modified for electronics intelligence work and assigned to Rhein-Main Air Base, Germany while modified RC-130As were assigned to the Military Air Transport Service (MATS) photo-mapping division. Aircraft equipped with giant skis were designated as C-130Ds, but were essentially A-models except for the conversion. Australia became the first non American force to operate the C130A Hercules with 12 examples being delivered during late 1958-early 1959. These aircraft were fitted with three-blade AeroProducts propeller of 15′ diameter. As the C-130A became operational with Tactical Air Command (TAC), the C-130′s lack of range became apparent and additional fuel capacity was added in the form of external pylon-mounted tanks at the end of the wings. The A-model continued in service through the Vietnam War, where the aircraft assigned to the four squadrons at Naha AB, Okinawa and one at Tachikawa Air Base, Japan performed yeoman’s service, including operating highly classified special operations missions such as the BLIND BAT FAC/Flare mission and FACT SHEET leaflet mission over Laos and North Vietnam. The A-model was also provided to the South Vietnamese Air Force as part of the Vietnamization program at the end of the war, and equipped three squadrons based at Tan Son Nhut AFB. The last operator in the world is the Honduran Air Force, which is still flying one of five A model Hercules (FAH 558, c/n 3042) as of October 2009.
C-130B model
The C-130B model was developed to complement the A models that had previously been delivered, and incorporated new features, particularly increased fuel capacity in the form of auxiliary tanks built into the center wing section and an AC electrical system. Four-bladed Hamilton Standard propellers replaced the Aero Product three-bladed propellers that distinguished the earlier A-models. B-models replaced A-models in the 314th and 463rd Troop Carrier Wings. During the Vietnam War four squadrons assigned to the 463rd Troop Carrier/Tactical Airlift Wing based at Clark Air Force Base and Mactan Air Force Base in the Philippines were used primarily for tactical airlift operations in South Vietnam. In the spring of 1969, 463rd crews commenced COMMANDO VAULT bombing missions dropping "daisy cutter" M-121 10,000 lb (4,534 kg) bombs to clear "instant LZs" for helicopters. These would later be used by South Vietnam forces in a last-ditch air support effort to turn back communist troops. As the Vietnam War wound down, the 463rd B-models and A-models of the 374th Tactical Airlift Wing were transferred back to the United States where most were assigned to Air Force Reserve and Air National Guard units. Another prominent role for the B model was with the United States Marine Corps, where Hercules initially designated as GV-1s replaced C-119s. After Air Force C-130Ds proved the type’s usefulness in Antarctica, the US Navy purchased a number of B-models equipped with skis that were designated as LC-130s. The Royal Canadian Air Force became another early user of the C130 with the delivery of its first B model in 1960.
An electronic reconnaissance variant of the C-130B was designated C-130B-II. A total of 13 aircraft were converted and operated under the SUN VALLEY program name. They were operated primarily from Yokota Air Base, Japan. All reverted to standard C-130B cargo aircraft after their replacement in the reconnaissance role by other aircraft. The C-130B-II was distinguished by its false external wing fuel tanks, which were disguised signals intelligence (SIGINT) receiver antennas. These pods were slightly larger than the standard wing tanks found on other C-130Bs. Most aircraft featured a swept blade antenna on the upper fuselage, as well as extra wire antennas between the vertical fin and upper fuselage not found on other C-130s. Radio call numbers on the tail of these aircraft were regularly changed so as to confuse observers and disguise their true mission.
C-130E model
A Michigan Air National Guard C-130E dispatches its flares during a low-level training mission
The extended range C-130E model entered service in 1962 after it was developed as an interim long-range transport for the Military Air Transport Service. Essentially a B-model, the new designation was the result of the installation of 1,360 US gal (5,150 L) Sargent Fletcher external fuel tanks under each wing’s mid-section and more powerful Allison T56-A-7A turboprops. The hydraulic boost pressure to the ailerons was reduced back to 2050 psi as a consequence of the external tanks’ weight in the middle of the wingspan. The E model also featured structural improvements, avionics upgrades and a higher gross weight. Australia took delivery of 12 C130E Hercules during 1966–67 to supplement the 12 C-130A models already in service with the RAAF. Sweden and Spain fly the TP-84T version of the C-130E fitted for aerial refueling capability.
C-130F / KC-130F / C-130G models
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 3,600 US gal (13,626 l) stainless steel fuel tank carried inside the cargo compartment. The two wing-mounted hose and drogue aerial refueling pods each transfer up to 300 US gal per minute (19 l per second) 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.
C-130H model
Royal Australian Air Force C-130H (2007).
The C-130H model has updated Allison T56-A-15 turboprops, a redesigned outer wing, updated avionics and other minor improvements. Later H models had a new, fatigue-life-improved, center wing that was retro-fitted to many earlier H-models. The H model remains in widespread use with the US Air Force (USAF) and many foreign air forces. Initial deliveries began in 1964 (to the RNZAF), remaining in production until 1996. An improved C-130H was introduced in 1974, with Australia purchasing 12 of type in 1978 to replace the original 12 C-130A models which had first entered RAAF Service in 1958.
The United States Coast Guard employs the HC-130H for long range search and rescue, drug interdiction, illegal migrant patrols, homeland security, and logistics.
C-130H models produced from 1992 to 1996 were designated as C-130H3 by the USAF. The 3 denoting the third variation in design for the H series. Improvements included ring laser gyros for the INUs, GPS receivers, a partial glass cockpit (ADI and HSI instruments), a more capable APN-241 color radar, night vision device compatible instrument lighting, and an integrated radar and missile warning system. The electrical system upgrade included Generator Control Units (GCU) and Bus Switching units (BSU)to provide stable power to the more sensitive upgraded components.
C-130K model
Royal Air Force C-130K (C.3)
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 100 in (2.54 m) plug aft of the cockpit and an 80 in (2.03 m) plug at the rear of the fuselage. A single C-130K was purchased by the Met Office for use by its Meteorological Research Flight, where it was classified as the Hercules W.2. This aircraft was heavily modified (with its most prominent feature being the long red and white striped atmospheric probe on the nose and the move of the weather radar into a pod above the forward fuselage). This aircraft, named Snoopy, was withdrawn in 2001 and was then modified by Marshall of Cambridge Aerospace as flight-test bed for the A400M turbine engine, the TP400. The C-130K is used by the RAF Falcons for parachute drops. Three C-130K (Hercules C Mk.1P) were upgraded and sold to the Austrian Air Force in 2002.
Later C-130 models
The MC-130E Combat Talon was developed for the USAF during the Vietnam War to support special operations missions throughout Southeast Asia, and spawned a family of special missions aircraft. 37 of the earliest models currently operating with the United States Special Operations Command are scheduled to be replaced by new-production MC-130J versions. The EC-130 and EC-130H Compass Call versions are also Special variants but are assigned to Air Combat Command (ACC). The AC-130 gunship was first developed during the Vietnam War to provide close air support and other ground-attack duties.
USAF HC-130P refuels a HH-60G Pavehawk helicopter

The HC-130 is a family of long-range search and rescue variants used by the USAF and the US Coast Guard. Equipped for deep deployment of Pararescuemen (PJs), survival equipment, and aerial refueling of combat rescue helicopters, HC-130s 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. The Fulton system was later removed when aerial refueling of helicopters proved safer and more versatile. The movie The Perfect Storm depicts a real life SAR mission involving aerial refueling of a New York Air National Guard HH-60G by a New York Air National Guard HC-130P.
The C-130R and C-130T are US Navy and USMC models, both equipped with underwing external fuel tanks. The USN C-130T is similar, but has additional avionics improvements. In both models, aircraft are equipped with Allison T56-A-16 engines. The USMC versions are designated KC-130R or KC-130T when equipped with underwing refueling pods and pylons and are fully night vision system compatible.
The RC-130 is a reconnaissance version. A single example is used by the Islamic Republic of Iran Air Force, the aircraft having originally been sold to the former Imperial Iranian Air Force.
The Lockheed L-100 (L-382) is a civilian variant, equivalent to a C-130E model without military equipment. The L-100 also has two stretched versions.
Next generation
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.
Improvements and upgrades
In 2000, Boeing was awarded a US.4 billion contract to develop an Avionics Modernization Programme kit for the C-130. The program was beset with delays and cost overruns until project restructuring in 2007. On 2 September 2009, Bloomberg news reported that the planned Avionics Modernization Program (AMP) upgrade to the older C-130s would be dropped to provide more funds for the F-35, CV-22 and airborne tanker replacement programs. However, in June 2010, the Pentagon approved funding for the initial production of the AMP upgrade kits.
Under the terms of this agreement, the USAF has cleared Boeing to begin low-rate initial production (LRIP) for the C-130 AMP. A total of 198 aircraft are expected to feature the AMP upgrade. The current cost per aircraft is US million although Boeing expects that this price will drop to US million for the 69th aircraft.
Operational history
A Hercules deploying flares, sometimes referred to as Angel Flares due to the characteristic shape
USMC KC-130F Hercules performing takeoffs and landings aboard the aircraft carrier USS Forrestal (CVA-59) in 1963. The aircraft is now displayed at the National Museum of Naval Aviation.
The Hercules holds the record for the largest and heaviest aircraft to land on an aircraft carrier. In October and November 1963, a USMC KC-130F (BuNo 149798), loaned to the US Naval Air Test Center, made 29 touch-and-go landings, 21 unarrested full-stop landings and 21 unassisted take-offs on the USS Forrestal at a number of different weights.[13] The pilot, LT (later RADM) James H. Flatley III, USN, was awarded the Distinguished Flying Cross for his role in this test series. The tests were highly successful, but the idea was considered too risky for routine "Carrier Onboard 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 Marine Aerial Refueler Squadron 352 (VMGR-352) until 2005, is now part of the collection of the National Museum of Naval Aviation at NAS Pensacola, Florida.
The C-130 Hercules were used in the Battle of Kham Duc, when the North Vietnamese army forced U.S.-led forces to abandon the Kham Duc Special Forces Camp.
In 1958, a US reconnaissance C-130A-II was shot down over Armenia by MiG-17s.
While the C-130 is involved in cargo and resupply operations daily, it has been a part of some notable offensive operations.
In 1964 C-130 crews from the 6315th Operations Group at Naha AB, Okinawa commenced FAC/Flare missions over the Ho Chi Minh Trail in Laos supporting USAF strike aircraft. In April 1965 the mission was expanded to North Vietnam where C-130 crews led formations of B-57 bombers on night reconnaissance/strike missions against communist supply routes leading to South Vietnam. In early 1966 Project BLIND BAT/LAMPLIGHTER was established at Ubon RTAFB, Thailand. After the move to Ubon the mission became a four-engine forward air controller (FAC) mission with the C-130 crew searching for targets then calling in strike aircraft. Another little-known C-130 mission flown by Naha-based crews was COMMANDO SCARF, which involved the delivery of chemicals onto sections of the Ho Chi Minh Trail in Laos that were designed to produce mud and landslides in hopes of making the truck routes impassable.[citation needed]
In November 1964, on the other side of the globe, C-130Es from the 464th Troop Carrier Wing but loaned to 322d Air Division in France, flew one of the most dramatic missions in history in the former Belgian Congo. After a Congolese rebel group named "Simba" took white residents of the city of Stanleyville hostage, the US and Belgian developed a joint rescue mission that used the C-130s to airlift and then drop and air-land a force of Belgian paratroopers to rescue the hostages. Two missions were flown, one over Stanleyville and another over Paulis during Thanksgiving weeks.[15] The headline-making mission resulted in the first award of the prestigious MacKay Trophy to C-130 crews.
In October 1968 a C-130B from the 463rd Tactical Airlift Wing dropped a pair of M121 10,000 pound bombs that had been developed for the massive B-36 bomber but had never been used. The US Army and US Air Force resurrected the huge weapons as a means of clearing landing zones for helicopters and in early 1969 the 463rd commenced Commando Vault missions. Although the stated purpose of COMMANDO VAULT was to clear LZs, they were also used on enemy base camps and other targets.
After the People’s Republic of China conducted its third nuclear test on 9 May 1966, the US was eager to get information on the Chinese capabilities. After the failure of the Black Cat Squadron to plant operating sensor pods near the Lop Nur Nuclear Weapons Test Base using a Lockheed U-2, the CIA developed a plan, named Heavy Tea, to deploy two battery-powered sensor pallets near the base. To deploy the pallets, a Black Bat Squadron crew was trained in the US to fly the C-130 Hercules. The crew of 12, led by Col Sun Pei Zhen, took off from Takhli Royal Thai Air Force Base in an unmarked US Air Force C-130E on 17 May 1969. Flying for six and a half hours at low altitude in the dark, they arrived over the target and the sensor pallets were dropped by parachute near Anxi in Gansu province. After another six and a half hours of low altitude flight, they arrived back at Takhli. The sensors worked and uploaded data to a US intelligence satellite for six months, before their batteries wore out. The Chinese conducted two nuclear tests, on 22 September 1969 and 29 September 1969, during the operating life of the sensor pallets. Another mission to the area was planned as operation Golden Whip, but was called off in 1970.
The MC-130 Combat Talon variant carries and deploys the among the largest conventional bombs in the world, the BLU-82 "Daisy Cutter" and GBU-43/B Massive Ordnance Air Blast bomb, also known as the MOAB. Daisy Cutters were used during the Vietnam War to clear landing zones and to eliminate mine fields. The weight and size of the weapons make it impossible or impractical to load them on conventional bombers. The GBU-43/B MOAB is a successor to the BLU-82 and can perform the same function, as well as perform strike functions against hardened targets in a low air threat environment.
The AC-130 also holds the record for the longest sustained flight by a C-130. From 22 to 24 October 1997, two AC-130U gunships flew 36.0 hours nonstop from Hurlburt Field Florida to Taegu (Daegu), South Korea while being refueled 7 times by KC-135 tanker aircraft. This record flight shattered the previous record longest flight by over 10 hours while the 2 gunships took on 410,000 lb (190,000 kg) of fuel. The gunship has been used in every major U.S. combat operation since Vietnam, except for Operation El Dorado Canyon, the 1986 attack on Libya.
In the Indo-Pakistani War of 1965, the Pakistan Air Force modified/improvised several aircraft for use as heavy bombers, and attacks were made on Indian bridges and troop concentrations with some successes. No aircraft were lost in the operations, though one was slightly damaged.
It was also used in the 1976 Entebbe raid in which Israeli commando forces carried a surprise assault to rescue 103 passengers of an airliner hijacked by Palestinian and German terrorists at Entebbe Airport, Uganda. The rescue force—200 soldiers, jeeps, and a black Mercedes-Benz (intended to resemble Ugandan Dictator Idi Amin’s vehicle of state)—was flown 2,200 nmi (2,532 mi; 4,074 km) from Israel to Entebbe by four Israeli Air Force (IAF) Hercules aircraft without mid-air refueling (on the way back, the planes refueled in Nairobi, Kenya).
During the Falklands War (Spanish: Guerra de las Malvinas) of 1982, Argentine Air Force C-130s undertook highly dangerous, daily re-supply night flights as blockade runners to the Argentine garrison on the Falkland Islands. They also performed daylight maritime survey flights. One was lost during the war. Argentina also operated two KC-130 tankers during the war, and these refueled both the A-4 Skyhawks and Navy Dassault-Breguet Super Étendards. The British also used RAF C-130s to support their logistical operations.
During the Gulf War of 1991 (Operation Desert Storm), the C-130 Hercules was used operationally by the US Air Force, US Navy and US Marine Corps, along with the air forces of Australia, New Zealand, Saudi Arabia, South Korea and the UK.
Recent history
During the invasion of Afghanistan in 2001 and the ongoing support of the International Security Assistance Force (Operation Enduring Freedom), the C-130 Hercules has been used operationally by Australia, Belgium, Canada, Denmark, France, Italy, the Netherlands, New Zealand, Norway, Portugal, South Korea, Spain, the UK and the United States.
During the 2003 invasion of Iraq (Operation Iraqi Freedom), the C-130 Hercules has been used operationally by Australia, the UK and the United States. After the initial invasion, C-130 operators as part of the Multinational force in Iraq used their C-130s to support their forces in Iraq.
One RAF C-130 was shot down on 30 January 2005, when an Iraqi insurgent brought it down firing with a ZU-23 anti-aircraft artillery gun while the plane was flying at 164 ft (50 m) after it had dropped SAS special forces paratroopers.
A prominent C-130T aircraft named Fat Albert serves as the support aircraft for the US Navy Blue Angels flight demonstration team. Although Fat Albert supports a Navy squadron, it is operated by the US Marine Corps (USMC) and its crew consists solely of USMC ersonnel. At some air shows featuring the team, Fat Albert takes part, performing flyovers and sometimes demonstrating its jet-assisted takeoff (JATO) capabilities, but the JATO demonstration ended in 2009 due to dwindling supplies of rockets.
On 20 November 2011, the Australian government announced plans to donate four ex-RAAF C-130 Hercules aircraft to Indonesia for humanitarian and disaster relief work. The Hercules aircraft require an estimated AUD million in maintenance to restore them to airworthiness.
Civilian use
The U.S. Forest Service developed the Modular Airborne FireFighting System for the C-130 in the 1970s, which allows regular aircraft to be temporarily converted to an airtanker for fighting wildfires.[22] In the late 1980s, 22 retired USAF C-130As were removed from storage at Davis-Monthan Air Force Base and transferred to the U.S. Forest Service who then sold them to six private companies to be converted into air tankers (see U.S. Forest Service airtanker scandal). After one of these aircraft crashed due to wing separation in flight as a result of fatigue stress cracking, the entire fleet of C-130A air tankers was permanently grounded in 2004 (see 2002 airtanker crashes). C-130s have been used to spread chemical dispersants onto the massive oil slick in the Gulf Coast in 2010.[citation needed]
[edit] Variants
C-130s from the: US, Canada, Australia and Israel (foreground to background)
Cargo compartment of a Swedish Air Force C-130
For civilian versions, see Lockheed L-100 Hercules.

Significant military variants of the C-130 include:

C-130A/B/E/F/G/H/K/T
Tactical airlifter basic models
C-130J Super Hercules
Tactical airlifter, with new engines, avionics, and updated systems
C-130K
Designation for RAF Hercules C1/W2/C3 aircraft (C-130Js in RAF service are the Hercules C.4 and Hercules C.5)
AC-130A/E/H/U Spectre/Spooky
Gunship variants
C-130D/D-6
Ski-equipped version for snow and ice operations United States Air Force / Air National Guard
CC-130E/H/J Hercules
Designation for Royal Canadian Air Force Hercules aircraft
DC-130A/E
Drone control
EC-130
EC-130E/J Commando Solo – USAF / Air National Guard psychological operations version
EC-130E – Airborne Battlefield Command and Control Center (ABCCC)
EC-130E Rivet Rider – Airborne psychological warfare aircraft
EC-130H Compass Call – Electronic warfare and electronic attack.[23]
EC-130V – Airborne early warning and control (AEW&C) variant used by USCG for counter-narcotics missions
GC-130
Permanently Grounded "Static Display"
HC-130
HC-130B/E/H – Early model combat search and rescue
HC-130P/N Combat King – USAF aerial refueling tanker and combat search and rescue
HC-130J Combat King II – Next generation combat search and rescue tanker
HC-130H/J – USCG long-range surveillance and search and rescue
JC-130
Temporary conversion for flight test operations
KC-130F/R/T/J
United States Marine Corps aerial refueling tanker and tactical airlifter
LC-130F/H/R
USAF / Air National Guard – Ski-equipped version for Arctic and Antarctic support operations.
MC-130
MC-130E/H Combat Talon I/II – Special operations infiltration/extraction variant
MC-130W Combat Spear/Dragon Spear – Special operations tanker/gunship
MC-130P Combat Shadow – Special operations tanker
MC-130J Combat Shadow II – Special operations tanker Air Force Special Operations Command
YMC-130H – Three modified under Operation Credible Sport for second Iran hostage crisis rescue attempt
NC-130
Permanent conversion for flight test operations
PC-130
Maritime patrol
RC-130
Surveillance aircraft for reconnaissance
SC-130
Search and rescue
TC-130
Aircrew training
VC-130
VIP transport
WC-130A/B/E/H/J
Weather reconnaissance ("Hurricane Hunter") version for USAF / Air Force Reserve Command in support of the NOAA/National Weather Service’s National Hurricane Center