# Jeff Scott
# Beech 99, low cruise configuration
# small twin turboprop commuter airplane, data from:
#       Roskam, Jan. Airplane Flight Dynamics and Automatic Flight
#         Controls, Part I. Lawrence KS: DARcorporation, 1995, 
#         pg 508-510
# 03-23-2000    file creation

init Dz_cg       2.5    # [ft]

geometry bw     46      # [ft]
geometry cbar    6.5    # [ft]
geometry Sw    280      # [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    7000     # [lb]
mass I_xx     10085     # [slug-ft^2]
mass I_yy     15148     # [slug-ft^2]
mass I_zz     23046     # [slug-ft^2]
mass I_xz      1600     # [slug-ft^2]


# Roskam: CTx=0.162 (SL conditions) --> 1550 lb
# aircraft specs: two engines of 553 kW each
#                               ~2300 lb static thrust each
engine simpleSingle 2300 # [lb]


CL CLo      0.201       # []
CL CL_a     5.48        # [/rad]
CL CL_adot  2.5         # [/rad]
CL CL_q     8.1         # [/rad]
CL CL_de    0.6         # [/rad]

CD CDo      0.027       # []
#CD CDK                  # []
CD CD_a     0.131       # [/rad]
CD CD_de    0.0         # [/rad]

Cm Cmo      0.05        # []
Cm Cm_a    -1.89        # [/rad]
Cm Cm_adot -9.1         # [/rad]
Cm Cm_q   -34.0         # [/rad]
Cm Cm_de   -2.0         # [/rad]

CY CY_beta -0.59        # [/rad]
CY CY_p    -0.19        # [/rad]
CY CY_r     0.39        # [/rad]
CY CY_da    0.0         # [/rad]    sign reversed
CY CY_dr    0.148       # [/rad]

Cl Cl_beta -0.13        # [/rad]
Cl Cl_p    -0.5         # [/rad]
Cl Cl_r     0.14        # [/rad]
Cl Cl_da   -0.156       # [/rad]    sign reversed
Cl Cl_dr    0.0109      # [/rad]

Cn Cn_beta  0.08        # [/rad]
Cn Cn_p     0.0109      # [/rad]
Cn Cn_r    -0.197       # [/rad]
Cn Cn_da    0.0012      # [/rad]    sign reversed
Cn Cn_dr   -0.0772      # [/rad]