RunupLab

Specific range

Fuel mileage over the ground: nm/gal = groundspeed ÷ burn rate — the same identity behind the fuel & endurance tool's range figure.

FUEL

SPECIFIC RANGE26/32SOLVED
kt
gph

How this is computed

Fuel mileage over the ground: nm/gal = groundspeed ÷ burn rate — the same identity behind the fuel & endurance tool's range figure. The PA-28 example profile (110 kt on 8.5 gph at 75%) makes 12.94 nm/gal, and a headwind lowers it even though the burn never changes.

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