US 12473078 B2 / Nov 18, 2025

Fuel measurement for vertical take-off dual-engine aircraft

The present application discloses an aircraft configured for vertical take-off and landing and horizontal flight. The aircraft includes one or more processors configured to control distribution of fuel among a plurality of aircraft fuel tanks. Controlling the distribution of fuel includes: (a) determining a first fuel level in a first nacelle fuel tank, wherein the first nacelle fuel tank is configured to provide a supply of fuel to a first engine during both (i) a vertical take-off and land operation, and (ii) a horizontal flight operation, (b) determining a fuselage fuel level in a fuselage fuel tank, and (c) determining whether to redistribute fuel across at least the first nacelle fuel tank and the fuselage fuel tank based at least in part on the first fuel level and the fuselage fuel level.