Tá Zvon 47 je jednorotorový jednomotorový lehký vrtulník vyráběný společností Bell Helicopter. Na základě třetího prototypu Bell 30, prvního vrtulníku společnosti navrženého Arthurem M. Youngem, se 47 stal prvním vrtulníkem certifikovaným pro civilní použití 8. března 1946. Bylo vyrobeno více než 5 600 Bellů 47, včetně těch, které byly licencovány společností Agusta v Itálii, Kawasaki Heavy Industries v Japonsku a Westland Aircraft ve Velké Británii. Bell 47J Ranger je upravená verze s plně uzavřenou kabinou a trupem.
Zdroj: Bell 47 na Wikipedii
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The Bell 47 is a single-engine two-seat light helicopter that was designed and produced by Bell Aircraft Corporation in the United States. It was the first mass-produced helicopter and the first to be certified for civilian use. The Bell 47 was widely used for various purposes, such as aerial photography, crop dusting, medical evacuation, military training, and police work. The Bell 47 was also featured in many films and television shows, such as MASH, Whirlybirds, and Magnum P.I. The Bell 47 has a distinctive bubble-shaped canopy that provides excellent visibility for the pilot and the passenger. The helicopter is powered by a Lycoming O-435 engine that drives a two-blade main rotor and a two-blade tail rotor. The Bell 47 has a maximum speed of 105 mph (169 km/h) and a range of 214 miles (344 km). The Bell 47 was introduced in 1946 and remained in production until 1974. More than 5,600 units were built and many are still flying today.