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eng.jet-engine-TSFC Calculator
Calculates jet engine Thrust Specific Fuel Consumption (TSFC) in lbf/h/lbf or mg/N·s from fuel flow rate and thrust. TSFC is the primary jet engine efficiency metric — modern high-bypass turbofans achieve TSFC of 0.5–0.6 lbf/h/lbf, 30% better than 1970s low-bypass engines.
Inputs
Thrust Kn
Reference formula or conversion factor shown for context.
Fuel Flow Kg S
Volume of fluid per unit time. Used to size pipes, pumps, and ducts.
Mach
Count of items or occurrences.
Alt M
Reference formula or conversion factor shown for context.
Results
TSFC (kg/kN·hr)
Sample size or count used in the calculation.
TSFC (mg/N·s)
Sample size or count used in the calculation.
TAS (m/s)
Reference formula or conversion factor shown for context.
TSFC = ṁf/F
Reference formula or conversion factor shown for context.