Mercedes Mullins
The C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). The C-130 was originally designed as a troop, medevac, and cargo transport aircraft, but its versatile airframe has led to it being used in a wide variety of other roles. The C-130's fuel burn rate depends on the model and variant of the aircraft. For example, the C-130A had a total fuel capacity of 40,000 pounds (18,000 kg), while the C-130R and C-130T are equipped with underwing external fuel tanks. The C-130J Hercules, a more recent variant, has an estimated fuel burn rate of 58 kg to climb 1000 ft under atmospheric conditions and at standard speeds.
| Characteristics | Values |
|---|---|
| Engine | Allison T56-A-9 turboprops |
| Engine type | Four-engine turboprop |
| Fuel capacity | 40,000 pounds (18,000 kg) |
| Range | N/A |
| Fuel burn rate for climb | 58 kg to climb 1000 ft (305 m) |
| Passenger capacity | 92 |
| Combat troop capacity | 72 |
| Paratrooper capacity | 64 |
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What You'll Learn
- The C-130 Hercules' turboprop engines use less fuel than turbojets
- The Allison T56 engine gives the aircraft greater range
- C-130 models have varying fuel capacities
- The C-130H model must sometimes land with reduced fuel when carrying heavy cargo
- The C-130R and C-130T are equipped with underwing external fuel tanks
The C-130 Hercules' turboprop engines use less fuel than turbojets
The C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). The C-130 Hercules primarily performs the tactical portion of the airlift mission and is capable of operating from rough, dirt strips. It is also the prime transport for airdropping troops and equipment into hostile areas.
The C-130 Hercules has a fuel capacity of 40,000 pounds (18,000 kg). This includes additional fuel capacity added with wing pylon-mounted tanks outboard of the engines, which added 6,000 pounds (2,700 kg) of fuel capacity. The C-130R and C-130T models are also equipped with underwing external fuel tanks.
While I cannot provide an exact figure for how much fuel a C-130 Hercules burns, a rough estimation for the fuel burn rate of a C-130J Hercules to climb 1000 ft is 58 kg. This estimation assumes a global conversion efficiency of 7% and is based on the energy needed for a 60,000 kg mass to climb 1000 ft and the heating value of jet fuel.
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The Allison T56 engine gives the aircraft greater range
The C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). The C-130 was originally designed as a troop, medevac, and cargo transport aircraft, but its versatile airframe has led to its use in various other roles, including as a gunship, for airborne assault, search and rescue, scientific research support, weather reconnaissance, aerial refuelling, maritime patrol, and aerial firefighting. The C-130 is now the main tactical airlifter for many military forces worldwide, operating in over 60 nations.
The Allison T56 engine, a notable advance for large aircraft, was developed specifically for the C-130. The turboprop engine gave the C-130 greater range than a turbojet engine as it used less fuel and produced much more power for its weight than piston engines. The Allison T56-A-9 turboprops, with three-blade propellers, powered the initial production model, the C-130A, with deliveries beginning in December 1956. However, the C-130A's lack of range became apparent, and subsequent models, such as the C-130B, incorporated increased fuel capacity in the form of auxiliary tanks built into the center wing section.
The C-130H model, introduced in 1974, features updated Allison T56-A-15 turboprops, a redesigned outer wing, and updated avionics. The H model remains in widespread use with the United States Air Force (USAF) and many foreign air forces. The U.S. Coast Guard employs the HC-130H for long-range search and rescue, drug interdiction, illegal migrant patrols, homeland security, and logistics.
The C-130R and C-130T are U.S. Navy and USMC models, respectively, both equipped with underwing external fuel tanks and Allison T56-A-16 engines. The USMC versions, designated KC-130R or KC-130T, are equipped with underwing refuelling pods and pylons and are fully night vision system compatible.
While specific fuel burn rates for the C-130 Hercules may be difficult to find, the aircraft's range and fuel efficiency have been improved through the use of the Allison T56 engine and the addition of auxiliary fuel tanks in subsequent models.
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C-130 models have varying fuel capacities
The C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). It was originally designed as a troop, medevac, and cargo transport aircraft, but its versatile airframe has led to its use in various other roles, including as a gunship, for airborne assault, search and rescue, scientific research support, weather reconnaissance, aerial refueling, maritime patrol, and aerial firefighting. The C-130 is now the main tactical airlifter for many military forces worldwide, with over 40 variants, including civilian versions.
The C-130H model, which was introduced in 1974, features updated turboprops, a redesigned outer wing, and improved avionics. Some variants of the H model, such as those used by the U.S. Coast Guard for long-range search and rescue and other missions, may have different fuel capacities due to structural requirements when carrying heavy cargo, which can reduce usable range.
The C-130R and C-130T are U.S. Navy and USMC models equipped with underwing external fuel tanks. The USMC versions, designated KC-130R or KC-130T, are also equipped with underwing refueling pods and pylons and are fully night vision system compatible. The exact fuel burn rate for climbing a C-130J Hercules is challenging to determine and may depend on various factors, including payload and climbing distance.
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The C-130H model must sometimes land with reduced fuel when carrying heavy cargo
The C-130 Hercules is a versatile aircraft used by various air forces worldwide, including those of the US, UK, Australia, Sweden, and Spain. The C-130H model, an improved variant introduced in 1974, features updated Allison T56-A-15 turboprops, a redesigned outer wing, and advanced avionics.
The C-130H has a remarkable capacity for operating from rough, dirt strips, making it ideal for airdropping troops and equipment into hostile areas. Its versatility is further enhanced by its ability to carry heavy cargo, albeit sometimes requiring reduced fuel loads during takeoff to adhere to structural limitations, which consequently reduces its usable range.
The C-130H's fuel efficiency and range can be influenced by several factors, including the weight of the cargo, the number and type of engines, and the presence of external fuel tanks. For instance, some variants of the C-130 feature external fuel tanks with capacities of up to 1,290 US gallons (4,900 litres), significantly extending their range.
The C-130H's fuel burn rate is also dependent on the specific engine model. The Allison T56 engine series, for example, has various sub-variants with different fuel efficiency characteristics. The T56-A-15 engines on the C-130H are likely to have a slightly different fuel burn rate compared to earlier T56 engine models powering other C-130 variants.
In summary, the C-130H's fuel efficiency, range, and operational characteristics are influenced by a combination of factors, including engine type, cargo weight, and the presence of external fuel tanks. While the C-130H is a highly capable aircraft, operational constraints, such as landing with reduced fuel when carrying heavy cargo, are necessary to ensure structural integrity and safe operations.
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The C-130R and C-130T are equipped with underwing external fuel tanks
The Lockheed C-130 Hercules is an American four-engine turboprop military transport aircraft. It is capable of using unprepared runways for takeoffs and landings and is the prime transport for airdropping troops and equipment into hostile areas. The C-130 was originally designed for troop, medevac, and cargo transport, but its versatile airframe has led to its use in other roles such as a gunship, airborne assault, search and rescue, scientific research support, weather reconnaissance, aerial refueling, maritime patrol, and aerial firefighting.
The C-130 Hercules has been in service with the US since 1956 and is now the main tactical airlifter for many military forces worldwide. During its long service history, the Hercules has participated in numerous notable missions and demonstrations. One such aircraft, known as "Fat Albert," serves as the support aircraft for the US Navy Blue Angels flight demonstration team. Fat Albert is a C-130T (164763) and is operated by the US Marine Corps (USMC). At air shows, it performs flyovers and, until 2009, demonstrated its rocket-assisted takeoff (RATO) capabilities.
The C-130R and C-130T are specific variants of the C-130 Hercules that are equipped with underwing external fuel tanks. These are US Navy and USMC models, with the C-130T featuring numerous avionics improvements and full night-vision system compatibility. When these models are equipped with underwing refueling pods and pylons, they are designated KC-130R or KC-130T.
The C-130 Hercules has also set records with its long-range capabilities. In 1997, two AC-130U gunships completed the longest sustained flight by a C-130, flying nonstop for 36 hours from Florida to South Korea with the aid of KC-135 tanker aircraft for refuelling.
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Frequently asked questions
The fuel burn rate depends on the variant of the C-130. For example, the C-130J Hercules would burn approximately 58 kg of fuel to climb 1000 ft.
The C-130A has a fuel capacity of 40,000 pounds (18,000 kg).
No, different variants have different fuel capacities. For example, the C-130R and C-130T are equipped with underwing external fuel tanks, while the C-130B has auxiliary tanks built into the center wing section.
