PROCEDURE ESTABLISHING MASS FUEL RESERVE ABOARD MANEUVERING AIRCRAFT Russian patent published in 2003 - IPC

FIELD: aviation. SUBSTANCE: values of fuel mass M_o in underwing, wing and fuselage tanks, that is, in tanks of correspondingly first, second and third sequence of consumption as well as value of fuel mass m_li in each underwing tank are entered into storage of airborne computer. Mass m₃ of fuel in fuselage tanks is computed with the use of function depending on their geometric characteristics, on level and characteristic parameters ( temperature, static and dynamic dielectric permittivity ) of fuel. Mass m_n of fuel consumed from wing tanks is computed by means of function depending on characteristic parameters of fuel in these tanks and measured momentary consumption. Value m_n. is established more accurately at moment of jettisoning of each underwing tank. Difference m₂ between amount of filled fuel ( for refueling ( /Mo+m/) ) and more accurate value m_n is computed. With m₂≥m₃ mass m₂ is indicated as fuel reserve M aboard aircraft and with m₂<m₃ mass m₃ is indicated. EFFECT: more accurate measurement of fuel mass during overloads and space evolutions of aircraft and in process of aircraft refueling. 3 cl, 1 dwg