# Jeff Scott # Cessna A-37/T-37, cruise configuration # small twin jet engine military trainer, data from: # Roskam, Jan. Airplane Flight Dynamics and Automatic Flight # Controls, Part I. Lawrence KS: DARcorporation, 1995, # pg 501-503 # 03-23-2000 file creation init Dz_cg 2.5 # [ft] geometry bw 33.8 # [ft] geometry cbar 5.47 # [ft] geometry Sw 182.0 # [ft^2] controlSurface de 20 20 # [deg] guess for now controlSurface da 20 20 # [deg] guess for now controlSurface dr 20 20 # [deg] guess for now mass Weight 6360 # [lb] mass I_xx 7985 # [slug-ft^2] mass I_yy 3326 # [slug-ft^2] mass I_zz 11183 # [slug-ft^2] mass I_xz 0 # [slug-ft^2] # Roskam: CTx=0.158 (SL conditions) --> 850 lb # aircraft specs: 2 engines of 2850 lb static thrust each engine simpleSingle 2850 # [lb] CL CLo 0.2 # [] CL CL_a 5.15 # [/rad] CL CL_adot 2.0 # [/rad] CL CL_q 4.1 # [/rad] CL CL_de 0.5 # [/rad] CD CDo 0.048 # [] CD CD_a 0.384 # [/rad] CD CD_de 0.0 # [/rad] Cm Cmo 0.025 # [] Cm Cm_a -0.7 # [/rad] Cm Cm_adot -6.95 # [/rad] Cm Cm_q -14.9 # [/rad] Cm Cm_de -1.12 # [/rad] CY CY_beta -0.346 # [/rad] CY CY_p -0.0827 # [/rad] CY CY_r 0.3 # [/rad] CY CY_da 0.0 # [/rad] sign reversed CY CY_dr 0.2 # [/rad] Cl Cl_beta -0.0944 # [/rad] Cl Cl_p -0.442 # [/rad] Cl Cl_r 0.0926 # [/rad] Cl Cl_da -0.181 # [/rad] sign reversed Cl Cl_dr 0.015 # [/rad] Cn Cn_beta 0.1106 # [/rad] Cn Cn_p -0.0243 # [/rad] Cn Cn_r -0.139 # [/rad] Cn Cn_da 0.0254 # [/rad] sign reversed Cn Cn_dr -0.0365 # [/rad]