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- More than 29,000 engines produced, with 15,000 in service
- 180 million flight hours logged to date
- More than 170 different helicopter and fixed-wing applications
in both civil and military markets
The Model 250 Series II turboshaft engines are of two-shaft modular
design featuring four to six-stage axial and single-stage centrifugal
compressors, a two-stage LP turbine, two-stage HP turbine with a
hydromechanical fuel control system, and a gearbox with 6,000rpm
output. Compressed air is routed to the aft end of the engine for
combustion, with exhaust gases exiting upward from the middle of
the engine. The larger Series IV family is identical in layout except
for having one-stage centrifugal rather than a centrifugal/axial
compressor. The latest Series IV turboshafts also feature a FADEC
(Full Authority Digital Engine Control) system.
Applications include:
- GBA Hawk 4T
- Kamov Ka-226
- PZL SW-4
- Northrop Grumman RQ-8A Fire Scout
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Interactive engine
Drag the slider to view around the Model 250 engine. |
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