Allison 250 series
E687574
The Allison 250 series is a family of compact, lightweight turboshaft engines widely used in light helicopters and small fixed-wing aircraft.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Allison 250 series canonical | 2 |
| Allison 250‑C18 | 1 |
| Allison 250‑C20 | 1 |
| Allison T63 | 1 |
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | turboshaft engine family ⓘ |
| alsoKnownAs | Rolls-Royce M250 NERFINISHED ⓘ |
| application |
helicopter turboshaft
ⓘ
small turboprop aircraft ⓘ |
| configuration |
turboprop
ⓘ
turboshaft ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designGoal |
high reliability
ⓘ
low operating cost ⓘ |
| feature |
compact design
ⓘ
free power turbine ⓘ lightweight construction ⓘ modular design ⓘ reverse-flow combustor ⓘ two-stage centrifugal compressor ⓘ |
| fuelType | aviation kerosene ⓘ |
| introducedInDecade | 1960s ⓘ |
| manufacturer |
Allison Engine Company
NERFINISHED
ⓘ
Rolls-Royce plc NERFINISHED ⓘ |
| marketSegment |
light helicopter engines
ⓘ
small turboprop engines ⓘ |
| notableOperator |
civil helicopter operators worldwide
ⓘ
military helicopter operators worldwide ⓘ |
| notableVariant |
Allison 250-B17
NERFINISHED
ⓘ
Allison 250-C18 NERFINISHED ⓘ Allison 250-C20 NERFINISHED ⓘ Allison 250-C28 NERFINISHED ⓘ Allison 250-C30 NERFINISHED ⓘ Allison 250-C47 NERFINISHED ⓘ |
| powerOutputRange | approximately 250 to 715 shaft horsepower ⓘ |
| primaryUse |
civil aviation
ⓘ
military aviation ⓘ |
| status | in widespread service ⓘ |
| successor | Rolls-Royce RR300 NERFINISHED ⓘ |
| usedIn |
light helicopters
ⓘ
small fixed-wing aircraft ⓘ |
| usedOnAircraft |
Bell 206 JetRanger
NERFINISHED
ⓘ
Bell 407 NERFINISHED ⓘ Cessna 425 NERFINISHED ⓘ Eurocopter AS355 TwinStar NERFINISHED ⓘ Fairchild Swearingen Metro (early variants) NERFINISHED ⓘ MD 500 series ⓘ Schweizer 333 NERFINISHED ⓘ Shorts 330 (some variants) NERFINISHED ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Bölkow Bo‑105
this entity surface form:
Allison 250‑C20
subject surface form:
Bölkow Bo‑105
this entity surface form:
Allison 250‑C18
this entity surface form:
Allison T63