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The aircraft is rated to carry up to 19,600 US gallons (74,000 L) of fire retardant or water. It is the largest aerial firefighting aircraft in the world. [1] Initially developed by Evergreen International Aviation, the first Supertanker was based on a 747-200 (N470EV, tanker/tail number 947
The turbofan-powered aircraft carry up to 9,400 [2] US gallons (35,583 liters) of water or fire retardant in an exterior belly-mounted tank, the contents of which can be released in eight seconds. Four air tankers are currently in operation, all DC-10-30 aircraft, with the call-signs Tanker 910, 911, 912 and 914 .
The Be-200 can carry a maximum payload of about 12,000 litres (3,200 US gal) of water, making "scoops" in suitable stretches of water in 14 seconds. Bombardier's Dash 8 Q Series aircraft are the basis of new, next-generation air tankers.
According to Flight International, the CL-415 has good handling on the water, being relatively easy to operate in comparison with several other amphibious aircraft. [6] The CL-515 can hold up to 7,000 litres (1,850 US gallons), and has a refill time of 14 seconds. [3]
The large tanks hold Fire retardant, which is mixed with the water load. The aircraft can carry 7,200 US gal (27,000 L; 6,000 imp gal) of water and each deployment can cover an area of up to 4 acres (1.6 hectares). The aircraft can also carry up to 600 US gal (2,300 L; 500 imp gal) of foam concentrate for gelling the load drop. [10]
[2]: 3–4 Modern flight management systems can calculate the optimum amount of fuel to tanker for given origin and destination fuel prices. In the ECAC area, full tankering is performed on approximately 15% of flights and partial tankering on a further 15% of flights.
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A MAFFS II-equipped C-130 Hercules from the 302nd Airlift Wing drops water over the Hayman Fire burn scar during training in May 2021.. The Modular Airborne FireFighting System (MAFFS) is a self-contained unit used for aerial firefighting that can be loaded onto both military cargo transport Lockheed C-130 Hercules and Embraer C-390 Millennium, which then allows the aircraft to be used as an ...