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.
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.
Over its 30-year production history, nearly 900 Bell 212 helicopters were built.
Specifications
| Engine | 2 x Pratt & Whitney Canada PT6T-3BE 1800 shp |
|---|---|
| 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 |
Derivatives & Versions
| 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 50 UH-1N reroled to search and rescue duties. |
| → AB212 | 1971 | |
| VH-1N | 1971 | VIP military variant |
| → 412 | 1979 | Also known as the Griffin. |
| → 212 Eagle Single | 2007 | Conversion of a twin engine Bell 212 into a single-engine helicopter with a Honeywell T5317BCV / Lycoming T53-17 A or B turboshaft |