Rajan Wilcox
The Sikorsky UH-60 Black Hawk is a medium transport/utility helicopter developed for the United States Army in the 1970s. It has since been sold to and operated by various air forces around the world, including those of Indonesia, Poland, Malaysia, Latvia, Lithuania, Croatia, Slovakia, and the Philippines. The fuel capacity of the S-70A-27 Black Hawk variant, which was exported to the Royal Hong Kong Auxiliary Air Force and Hong Kong Government Flying Service, is not publicly available. However, the Black Hawk's fuel capacity may vary depending on the variant and modifications made. For example, US Army variants can be fitted with stub wings to carry additional fuel tanks or weapons.
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What You'll Learn
- The Sikorsky S-70 is an American medium transport/utility helicopter
- The Sikorsky UH-60 Black Hawk comes in many variants and modifications
- The US Army variants can be fitted with stub wings for extra fuel tanks
- The average burn rate at sea level in summer is 900-1000lbs per hour
- The Philippine Air Force is the largest global user of S-70i Blackhawk Helicopters
The Sikorsky S-70 is an American medium transport/utility helicopter
Civilian versions, and some military versions, are produced under various S-70 model designations. The S-70 Firehawk, for example, is a civilian variant widely used for firefighting, search and rescue operations, emergency medical services, and corporate transportation.
The Sikorsky S-70 has also proven its versatility in military applications. Many countries around the world have adopted the S-70 helicopter for their armed forces. The S-70's reputation in military circles paved the way for its civilian applications as well.
The Sikorsky S-70's versatility extends beyond its civilian and military applications. The Maple Hawk, a variant offered by Sikorsky, was proposed to the Canadian Forces to replace their military's search and rescue helicopters. In 2010, the US DSCA approved the Colombian government's request for additional UH-60L Black Hawks for their counter-narcotics efforts. The S-70 has also been exported to Mexico, Saudi Arabia, Turkey, and the Philippines.
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The Sikorsky UH-60 Black Hawk comes in many variants and modifications
The Sikorsky UH-60 Black Hawk is a four-bladed, twin-engine, medium-lift utility helicopter. It is the U.S. Army's primary medium-lift utility transport and air assault aircraft. The Sikorsky UH-60 Black Hawk comes in many variants and modifications. The basic crew complement for the UH-60A is three: pilot, co-pilot, and crew chief. The A model was designed to carry 11 combat troops in addition to the crew.
The Sikorsky UH-60 Black Hawk has been modified for new missions and roles, including mine laying and medical evacuation. The helicopter can be equipped with the VOLCANO minefield dispersal system. The UH-60A is also used for medevac, command and control, and reconnaissance roles. The Army began converting Black Hawks to the medevac role in 1981.
The Sikorsky UH-60 Black Hawk has also been modified for the U.S. Navy, Air Force, and Coast Guard. The UH-60C Black Hawk is a modified version for Command and Control (C2) missions. The HH-60W Jolly Green II is a modified version of the UH-60M for the U.S. Air Force as a Combat Rescue Helicopter. The MH-60A Black Hawk is a variant modified with additional avionics, a night-vision-capable cockpit, FLIR, M134 door guns, internal auxiliary fuel tanks, and other Special Operations mission equipment. The MH-60L Black Hawk is a special operations modification used by the U.S.
The Sikorsky UH-60 Black Hawk has been exported to several nations. The UH-60J Black Hawk is a variant for the Japanese Air Self-Defense Force and Maritime Self-Defense Force produced under license by Mitsubishi Heavy Industries. The UH-60JA Black Hawk is a variant for the Japanese Ground Self-Defense Force. The AH-60L Arpía is an export version for Colombia developed by Elbit Systems, Sikorsky, and the Colombian Aerospace Force. It is a counter-insurgency (COIN) attack version with improved electronics, firing system, FLIR, radar, light rockets, and machine guns.
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The US Army variants can be fitted with stub wings for extra fuel tanks
The Sikorsky UH-60 Black Hawk is a highly versatile and advanced helicopter used by the US Army for a wide array of missions, including troop transport, electronic warfare, and aeromedical evacuation. It is equipped with advanced avionics and electronics, such as the Global Positioning System, and can be modified to suit various roles.
The US Army variants of the UH-60 Black Hawk can be fitted with stub wings, also known as the External Stores Support System (ESSS), to carry additional fuel tanks or weapons. This system was introduced in 1986 and allows for greater mission flexibility and extended range. The ESSS can carry up to 10,000 pounds of fuel and armament, including rockets, missiles, and gun pods.
However, it was found that the four fuel tanks of the ESSS obstructed the field of fire for the door guns. As a solution, the External Tank System (ETS) was developed, which carries two fuel tanks on the stub wings. This configuration provides a more streamlined approach to fuel storage and armament, ensuring that the door guns have a clear field of fire.
The Black Hawk's versatility is further enhanced by its ability to accommodate additional auxiliary fuel tanks, as mentioned on the Lockheed Martin website. This feature, combined with its powerful twin GE T700 power turbine engines, enables the Black Hawk to excel in a wide range of missions over land or sea. The Black Hawk's ability to adapt to different configurations underscores its role as a critical asset for the US Army in various operational contexts.
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The average burn rate at sea level in summer is 900-1000lbs per hour
The burn rate of fuel is the rate at which fuel is used by an engine. The average burn rate at sea level during the summer is 900-1000 lbs per hour. This burn rate is for a 60L capacity and is applicable when the Blackhawk helicopter is configured with external tanks.
The burn rate of a helicopter is influenced by various factors, including the weight of the aircraft, the altitude at which it is flying, the temperature, and the speed of the rotor blades. At sea level, the air density is higher, which can affect the performance of the helicopter's engines and, consequently, its fuel consumption.
During the summer, higher temperatures can also impact fuel burn rates. Warmer air is less dense, which can reduce the efficiency of the engine, leading to increased fuel consumption. Additionally, the weight of the aircraft can influence fuel burn rates. A heavier aircraft requires more fuel to maintain flight, while a lighter aircraft may consume less fuel.
The speed of the rotor blades also plays a role in fuel consumption. Faster-turning rotor blades can increase the lift generated, allowing the helicopter to carry more weight or fly faster, both of which can impact fuel usage. However, it is important to note that these are average burn rates, and the actual fuel consumption of a Blackhawk helicopter can vary depending on various factors and flight conditions.
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The Philippine Air Force is the largest global user of S-70i Blackhawk Helicopters
The Philippine Air Force is set to become the largest global operator of the S-70i Black Hawk helicopter. The country's Department of National Defense (DND) signed a contract with PZL Mielec in March 2019 for 16 S-70i variant Black Hawk helicopters worth $241.4 million. This was to replace the Philippine Air Force's aging fleet of UH-1 Huey helicopters. The first six units were delivered in November 2020, followed by five more in June 2021, and the final five of the first batch in December 2021. Unfortunately, one unit crashed during a nighttime training mission, killing all six crew members on board.
In 2022, the Philippine Air Force signed another contract with PZL Mielec, a subsidiary of Lockheed Martin, for 32 aircraft to expand its existing fleet of 15 S-70i Black Hawks to 47. This contract is the largest single order of Black Hawk helicopters for PZL Mielec since S-70i aircraft production began in 2009. The first five aircraft under this contract were delivered in June 2024, and another five in December 2024. The remaining aircraft are expected to be delivered within the next two years.
The S-70 Black Hawk helicopter is known for its rugged, reliable, and multi-mission capabilities. It is equipped with dual redundant electrical, hydraulic, and flight control systems, enhanced GE T701D engines, and wide rotor blades that enable it to carry 13 troops and equipment safely. The rotor blades are resistant to 23mm projectile fire, and the controls, hub, and power transmission system are designed to withstand ballistic impacts. The S-70 Black Hawk has been a trusted aircraft for delivering and extracting troops, MEDEVAC or casualty evacuation, providing critical supplies to troops, delivering emergency aid during natural disasters, and performing as an aerial firefighter and border patroller.
The S-70i Black Hawk is an upgraded version of the Sikorsky S-70, which was developed for the United States Army in the 1970s. The S-70i includes GPS navigation, a glass cockpit, an integrated Flight Management System, and upgraded powertrain and rotor systems that enhance power and lift capability.
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