Bell 212

Derived from 205
1968










Bell 212

The Bell 212 Twin Two-Twelve is a two-bladed, twin-engined, medium helicopter developed from the Bell 205 ( Huey ) powered by a, then revolutionary, Pratt & Whitney Canada Twin-Pac engine made up of two coupled PT6 power turbines driving a common gearbox.

Originally manufactured in Fort Worth, Texas, production was moved to Mirabel, Quebec, Canada in 1988. It has been also built under license in Italy by Agusta as the AB.212

The military version is known as UH-1N ( CH-135 in Canada ) and Agusta also developed a specialized shipborne variant.

Further development of the model 212 led to the Bell 412, the major difference being the composite four-blade main rotor.




Specifications


Engine: 2 x PW C PT6T-3BE 1800shp
Capacity: 1 + 14
Length: (m) 17.45
Height: (m) 3.9
Blades: 2
Rotor diam.: (m) 14.68
Disc area: (m2) 169.25
Weight: (kgs) Empty: 2720     Max: 5080
Speed: (km/h) Cruise: 185
Range: (km) 447
Ceiling: (m) 4328
Rate/Climb: (m/min) 400
blueprints

Derivatives & Versions


ModelYearHistory
CH-135 Twin Huey 1969 UH-1N variant for the Canadian Armed Forces
UH-1N 1969 Military version for the United States Marines Corps and Air Force
HH-1N 1970 Designation applied to UH-1Ns reroled to search and rescue duties. Used by both Navy and Marines
Agusta AB212 1971 Bell 212 built under license in Italy by Agusta in both civilian and military variants. Agusta also designed and produced the navalized varian ...
VH-1N 1971 VIP military variant
412 1979 Also known as the Griffin. Similar to the Bell 212 but featuring a foldable 4-bladed rotor of composite construction. Powered by a PWC PT6T-3B-1 ...
Design work began in Autumn 1978 with first deliveries early in 1981. Several versions available. 412SP (Special Performance) with more fuel and ...
The 412 is also assembled in Indonesia as the IPTN NB412 and Agusta from Italy built several variants since January 1981
UH-1Y Venom 2001 The Bell 450 was part of the Marines H-1 upgrade program to remanufacture the current fleet of UH-1N utility helicopters to an advanced configur ...
Eagle Copters 212 Eagle Single 2007 Conversion of a twin engine Bell 212 into a single-engine helicopter with a Honeywell T5317BCV / Lycoming T53-17 turboshaft



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