Aircraft rescue and firefighting (ARFF) is a special category of firefighting that involves the response, hazard mitigation, evacuation and possible rescue of passengers and crew of an aircraft involved in (typically) an airport ground emergency. (Wikipedia)
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About KAMAN HH 43 b rescue helicopter:
Design and development
In 1947 Anton Flettner, a German aviation engineer, was brought to New York in the United States as part of Operation Paperclip.[1] He was the developer of Germany’s Flettner Fl 282 “Kolibri” (Hummingbird), a helicopter employing the “synchropter” principle of intermeshing rotors, a unique design principle that dispenses with the need for a tail rotor. Flettner settled in the United States and became the chief designer of the Kaman company, where he started to design new helicopters, using the synchropter principle.
The Huskie had an unusual intermeshing contra-rotating twin-rotor arrangement with control effected by servo-flaps. The first prototype flew in 1947 and was adopted by the U.S. Navy with a piston engine. In 1954, in an experiment by Kaman and the U.S. Navy, one HTK-1 was modified and flew with its piston engine replaced by two turbine engines, becoming the world’s first twin-turbine helicopter.[2] The Air Force later adopted a version with one turboshaft engine: HH-43B and F versions.
Operational history
This aircraft saw use in the Vietnam War with several detachments of the Pacific Air Rescue Center, the 33d, 36th, 37th, and 38th Air Rescue Squadrons, and the 40th Aerospace Rescue and Recovery Squadron, where the aircraft was known by its call sign moniker “Pedro”. During the war, the two-pilot HH-43 Huskie flew more rescue missions than all other aircraft combined, because of its unique hovering capability. The HH-43 was eventually replaced by newer aircraft in the early 1970s.[3](Courtesy:wikiprdia)
(Pl. also visit posts referred below:)
Firefighting vehicle skid – Low pressure water mist fire skids
Sikorsky Fire Fighting Helicopters
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AVIATION BANGLADESH 