Abstract
Nomenclature CLopt = lift coef cient for Emax c = speci c fuel consumption Emax = maximum aerodynamic ef ciency for parabolic polar h = altitude, m S = wing area T = thrust t = dimensionless thrust, (TEmax=W / V = airspeed VR = reference or minimum drag airspeed, (2W=1⁄2SCLopt/ v = dimensionless airspeed,V=VR W = aircraft weight WF = fuel weight X = range X R = reference range, f8VRi0Emax[1i .1i 3 /]g=.c113⁄4 0:5 11 / y = dimensionless exponent for speci c fuel consumption z = dimensionless exponent for thrust 3 = fuel-to-initial-weightratio,WF=Wi 1⁄2 = air density 3⁄4 = relative air density with respect to sea level, 1⁄2=1⁄20
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