Power for helicopters
The PT6 turboshaft engines—the PT6B, -C, and -T—are designed to power single- and twin-engine helicopters. The engines in the 1,000- to 2,000-shaft horsepower class are very popular, thanks to their reliability and durability. The new PT6C-series engines, such as the PT6C-67, come with Full-Authority Digital Engine Control (FADEC).
MTU's involvement in the PT6B/-C/-T
Maintenance is carried out via the Pratt & Whitney Canada Customer Service Centre—a joint venture between MTU Maintenance Berlin-Brandenburg and Pratt & Whitney Canada.
Facts
- EIS: 1986 (PT6B-36)
- The PT6B/-C/-T is a turboshaft engine with maximum power of 2,000 shp
- Multi-stage axial compressor
- Single-stage centrifugal compressor
- Free power turbine
- Reverse-flow combustor
Applications
PT6B
- Augusta Westland A119 Koala
- Avicopter AC 313
- Sikorsky S-76B
PT6C
- Augusta Westland AW139
- Augusta Westland AW609
- Dyncorp UH-1 Global Eagle
- Airbus Helicopters H175
PT6T
- Augusta Bell Modell 212
- Augusta Bell Modell 412/SP/HP/EP
- Bell 412 EPI
- Bell CFUTTH CH-146 Griffon
- Sikorsky S-58T
Technical Data
| PT6B | PT6C | PT6T | |
| Max. power | 1,000 shp | 2,000 shp | 2,000 shp |
| Diameter | - | 1.9 - 2 ft | - |
| Height | 2.6 - 2.9 ft | - | 2.8 ft |
| Width | 1.6 ft | - | 3.6 ft |
| Length | 4.9 - 5.4 ft | 4.9 - 5.1 ft | 5.5 ft |