SPACE TECH & AVIONICS
Jet Fuel Burn & Mission Leg Estimator
Estimate block time, trip fuel, reserve fuel and total mission fuel from distance, cruise speed, hourly burn and planning allowances.
Engineering screening tool. Verify mission, manufacturer, operator, regulatory and project-specific requirements before relying on the result.
Estimated block time4.67 h
Trip fuel4,441 kg
Reserve fuel666 kg
Total planning fuel5,287 kg
Formula: Block time ≈ distance/cruise speed + fixed allowance; trip fuel = block time × hourly burn; total = trip + reserve + taxi/contingency fuel.
Method and assumptions
Block time ≈ distance/cruise speed + fixed allowance; trip fuel = block time × hourly burn; total = trip + reserve + taxi/contingency fuel.
Important limitations
- Planning estimate only. Actual dispatch fuel must use the aircraft flight manual, operator procedures, weather, routing, alternates, NOTAMs and applicable regulations.
- Hourly fuel burn varies significantly with aircraft, weight, altitude, temperature and mission profile.
Technical references
Commercial independence
Any sponsored or affiliate option shown after the calculation is separate from the formula and result. PROFENG does not change assumptions, outputs or ranking of engineering results because of a commercial relationship.