How Many Miles Per Gallon Does A P-8A Poseidon Get?

A new look at the Boeing P-8A Poseidon puts a rough miles-per-gallon figure on a mission aircraft that spends most of its time searching, tracking, and patrolling far from shore. The article uses Royal Australian Air Force specifications: nearly 74,957 lb (34,000 kg) of internal fuel and a 4,660-mile (7,500 km) theoretical range. Converting fuel mass to gallons with a standard Jet A/A-1 density of 6.68 lb per US gallon yields about 11,220 gallons (42,470 liters) internal capacity. Dividing gives roughly 0.42 miles per gallon (0.18 km per liter), or about 2.4 gallons per mile—though the calculation is not real-world mpg.