Section source: Complete Encyclopedia[13]

Dân sự

47Phiên bản trước khi sản xuât đại trà, sử dụng động cơ piston Franklin 178 hp (133 kW).47APhiên bản cải tiến của Bell 47, sử dụng động cơ piston 157 hp (117 kW) Franklin O-335-1.A 47B on display at the Steven F. Udvar-Hazy Center, 201147BEquivalent to the military YR-13/HTL-1, powered by the 157 hp (117 kW) Franklin O-335-1.47B-3Agricultural/utility version with open crew positions. Also, offered in a version to the US Postal Service as the Bell Airmailer .[14]47C47DFirst to appear with a molded "soap bubble" canopy.47D-1Introduced in 1949, it had an open tubework tail boom reminiscent of the Bell Model 30 and three seats.47EPowered by a 200 hp (150 kW) Franklin 6V4-200-C32 engine.47F47GCombines a 200 hp (149 kW) Franklin engine with the three-seat configuration of the 47D-1 and introduced the twin saddle-bag fuel tank configuration.47G-2Powered by the Lycoming VO-435 engine. Produced under license by Westland Aircraft as the Sioux for the UK military.47G-2APowered by a 240 hp (179 kW) VO-435.47G-2A-1Wider cabin, improved rotor blades and increased fuel capacity.47G-3Powered by a supercharged 225 hp (168 kW) Franklin 6VS-335-A.47G-3BPowered by a turbocharged 280 hp (209 kW) Lycoming TVO-435.47G-4Three-seat helicopter powered by an Avco Lycoming VO-540 engine.47G-5A three-seat utility version. A two-seat agricultural version was later known as the Ag-5. The 47G-5 remained in production even after H & J production had ended.[cần dẫn nguồn]Bell 47H-1A three-seat version with an enclosed cabin and fuselage.[15]47J RangerA four-seat version powered by a VO-435 engine.[15]47KMilitary two-seat training variant of the 47J.

Quân sự

See H-13 Sioux1957 47H-1

Các phiên bản được cấp phép

Agusta A.115 1971 Italian prototype of a Bell 47J with an unclad, tubular tail boom, and powered by a Turbomeca Astazou II turboshaft engineMeridionali/Agusta EMA 124 Italian prototype with redesigned forward fuselage. Not produced.[16][17]

Kawasaki KH-4 Japanese production version with redesigned, lengthened cabin, and redesigned control system

Conversions

Carson Super C-4El Tomcat Mk.II Bell 47G-2 modified extensively for agricultural spraying by Continental Copters Inc. First flew in April 1959. Followed by further improved versions.