Title
The Piasecki H21 Helicopter: An Illustrated History of the H21 Helicopter and Its Designer, Frank N. Piasecki,Used
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The only comprehensive illustrated history of Frank N. Piasecki and his H21 advanced technology helicopter. The Piasecki H21 became the first successful tandemrotor cargo helicopter to enter mass production. Its innovative and unique design became the basis for the development of both the CH46 and CH47 helicopters, which remain in service to this day. The book covers the early life of Frank N. Piasecki and the development of his first helicopter, the singlerotor PV2. Soon the XHRP1 (Experimental, Helicopter, Transport, Piasecki, Model One) would appear and it was this helicopter which successfully demonstrated the feasibility of the tandemrotor helicopter design. Successive improvements soon led to the HRP1 and the more advanced HRP2 which were flown by the US Marine Corps and US Coast Guard. The US Air Force expressed a need for a rescue helicopter that could operate in the extreme cold environment of the Arctic and issued a request for proposal. Frank Piasecki responded to this request with his H21 tandemrotor helicopter design. The Air Force liked what it saw and soon the H21A "Workhorse" was in production for the US Air Force and the Royal Canadian Air Force. The rapidly expanding US Army Aviation Program saw the H21 as a solution to meet its requirement for a helicopter capable of carrying an infantry squad. Soon the H21C, now named "Shawnee" following the Army tradition of naming its helicopters after American Indian Tribes. The H21 was soon in service with France, Germany, Sweden, Japan, and Burma. The H21, now know as the Vertol 44, entered civil airline service with New York Airways. Five US Army helicopter companies, flying H21 helicopters were deployed to Vietnam during 196162. These pioneering US Army helicopter companies proved that helicopters were capable of operating successfully combat. This success soon led to the rapid expansion and use of helicopters in Vietnam. The Frank N. Piasecki and his H21, both long overlooked, are nevertheless true pioneers in the history of rotarywing flight.
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This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
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