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Model 250
A very successful series that encompasses both turboshaft and turboprop
engines, nearly 50 models since the mid-60's. The 250 is possibly the world's
most common small helicopter engine.
Engine statistics
| Specification |
250-C20R |
250-C30M |
250-C40B |
| Application |
MD500, Bell 206 |
AS 350G |
Bell 430 |
| T/O Power |
450 shp |
650 shp |
715 shp |
| T/O SFC |
0.61 |
0.59 |
0.57 |
| Cruise Power |
380 shp |
600 shp |
613 shp |
| Cruise SFC |
|
|
|
| Max pwr. pressure ratio |
7.9 |
8.6 |
9.2 |
| Length (in) |
38.8 |
43.2 |
41 |
| Dia (in) |
23.2 |
25.7 |
25.1 |
| Weight |
173 lb |
250 lb |
280 lb |