The aerodynamic properties of a particular three-surface ultra high capacity airplane are determined by means of a hybrid vortex-lattice/panel method model. The study includes effects of aerodynamic and structural design limitations. It is shown that stable or slightly unstable configurations are compatible with low values of induced drag, and that the main design constraints are the maximum allowed lift coefficient of wing sections and the canard surface loading.
KendallE. R.The theoretical minimum induced drag of three-surface airplanes in trim. J. Aircraft, 1985, 22, 847–854.
2.
KrooI. M.Minimum induced drag of canard configurations. J. Aircraft, 1982, 19, 792–794.
3.
SelbergB. P.RokhsazK.Aerodynamic tradeoff study of conventional, canard and tri-surface aircraft systems. AIAA-Paper 85***4071, 1985.
4.
RokhsazK.SelbergB. P.Three-surface aircraft—optimum vs typical. J. Aircraft, 1989, 26, 699–704.
5.
Gómez-BlancoR.Project URANO EC 1000/1 (in Spanish), MSc Thesis ETSIA, Universidad Politecnica de Madrid, 1992.
6.
Gómez-BlancoR.Martínez-ValR.Ruiz-CalaveraL. P.Determination of the aerodynamic characteristics of a three-surface airplane by means of the panel method (in Spanish). In Métodos Numéricos en Ingenieria (Eds NavarrinaF.CasteleiroM.), 1993, 2, 1426–1434 (SEMNI, Barcelona, Spain).
