Engine Performance Tsfc: TURBOSHAFT
Aircraft and spacecraft engine performance parameters — thrust-specific fuel consumption (TSFC) and key design metrics by engine class and flight condition. Covers high-bypass turbofan (commercial), ultra-high-bypass (GTF/LEAP), low-bypass turbofan (military), turbojet, turboprop, turboshaft, ramjet, and scramjet engine classes at sea-level-static and cruise conditions.
| engine class | flight condition | notes | overall pressure ratio (dimensionless) | tsfc lb lbf hr (lb/lbf-hr) |
|---|---|---|---|---|
| TURBOSHAFT | HOT_HIGH_6000FT_ISA15 | Hot & high condition (6000 ft 38 degC ISA+15); power derate ~20% | 15 | 0.58 |
| TURBOSHAFT | SEA_LEVEL_STATIC | Helicopter turboshaft SLS; e.g. T700/Rolls-Royce Gem class | 15 | 0.48 |
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