Fuel Starvation vs. Fuel Exhaustion
In National Transportation Safety Board (NTSB) accident investigations, fuel emergencies are divided into two categories: Fuel Exhaustion (the airplane ran completely out of gasoline) and Fuel Starvation (gasoline remained in the tanks, but failed to reach the engine due to improper tank selector valve switching or uncoordinated flight). Both are entirely preventable through rigorous fuel management discipline.
Calculating Hourly Burn and Contingency Reserves
Never dispatch an airplane based solely on average fuel burn guesses. Consult your POH cruise charts to determine precise consumption rates at your planned manifold pressure and altitude. Always allocate dedicated climb fuel and add at least 45 to 60 minutes of personal reserve contingency fuel to your base requirements using our Fuel Calculator.
Mixture Leaning Discipline at Cruise
As you climb into thinner air, running a full-rich fuel mixture wastes fuel and carbons spark plugs. Once established at cruise altitude, lean the fuel mixture control reference exhaust gas temperature (EGT) gauges. Proper leaning reduces fuel flow rates by up to 20% while extending aircraft operational range.
Inflight Fuel Logging
Maintain a running fuel log on your kneeboard. At every navigation checkpoint, note the current time, compare actual flight duration against planned burn rates, and verify fuel gauge indications against physical tank dipstick pre-flight measurements.
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