Aviation & Aeronautics
Basic

Fuel Required

Total fuel needed is the fuel-burn rate multiplied by flight time.

Formula

F=f˙×tF = \dot{f} \times t

Variables

FFuel (gal/lb)
\dot{f}Fuel flow rate
tTime (h)

Example

10 gal/h for 2.5 h: F = 25 gal

Did You Know?

Regulations require aircraft to carry reserve fuel beyond the trip — running the tanks dry is never an option.