Symbols' list

Geometric data

Variable	Description	Units
Sw	Wing surface	m2
c	Mean aerodynamic Chord	m
span	Wing span	m

Mass and inertial data

Variable	Description	Units
mass	Mass	kg
Ixx_b	Moment of Inertia x-body-axis	kg * m2
Iyy_b	Moment of Inertia y-body-axis	kg * m2
Izz_b	Moment of Inertia z-body-axis	kg * m2
Ixy_b	Product of Inertia xy-body-plane	kg * m2
Ixz_b	Product of Inertia xz-body-plane	kg * m2
Iyz_b	Product of Inertia yz-body-plane	kg * m2
inertia	Moment of inertia tensor	kg * m2

Controls

Variable	Description	Units
delta_e	Elevator deflection	rad
delta_ail	Aileron deflection	rad
delta_r	Rudder deflection	rad
ih	Stabilator deflection	rad

Longitudinal Aerodynamic Coefficients

Variable	Description	Units
CL_0	Lift coefficient evaluated at the initial condition	-
CL_a	Lift stability derivative with respect to the angle of attack	-
CL_de	Lift stability derivative with respect to the elevator deflection	-
CL_dih	Lift stability derivative with respect to the stabilator deflection	-
CL_full	Lift coefficient including all the aerodynamic effects	-
CL	Lift coefficient (including engine)	-
CD_0	Drag coefficient evaluated at the initial condition	-
CD_a	Drag stability derivative with respect to the angle of attack	-
CD_full	Drag coefficient including all the aerodynamic effects	-
CD	Drag coefficient (including propulsion)	-
Cm_0	Pitching moment coefficient evaluated at the condition	-
Cm_a	Pitching moment stability derivative with respect to the angle of attack	-
Cm_de	Pitching moment stability derivative with respect to the elevator deflection	-
Cm_dih	Pitching moment stability derivative with respect to the stabilator deflection	-
Cm_full	Pitching moment coefficient including all the aerodynamic effects	-
Cm	Pitching moment coefficient (including propulsion)	-

Lateral Aerodynamic Coefficients

Variable	Description	Units
CY_b	Side force stability derivative with respect to the angle of sideslip	-
CY_da	Side force stability derivative with respect to the aileron deflection	-
CY_dr	Side force stability derivative with respect to the rudder deflection	-
CY_full	Side force coefficient including all the aerodynamic effects	-
CY	Side force coefficient (including propulsion)	-
Cl_b	Rolling moment stability derivative with respect to angle of sideslip	-
Cl_da	Rolling moment stability derivative with respect to the aileron deflection	-
Cl_dr	Rolling moment stability derivative with respect to the rudder deflection	-
Cl_full	Rolling moment coefficient including all the aerodynamic effects	-
Cl	Rolling moment coefficient (including engine)	-
Cn_b	Yawing moment coefficient evaluated at the condition	-
Cn_da	Yawing moment stability derivative with respect to the angle of attack	-
Cn_dr	Yawing moment stability derivative with respect to the elevator deflection	-
Cn_full	Yawing coefficient including all the aerodynamic effects	-
Cn	Yawing coefficient (including engine)	-

Force Coefficients in body axes

Variable	Description	Units
C_x	Force coefficient in x_body axis	-
C_y	Force coefficient in y_body axis	-
C_z	Force coefficient in z_body axis	-

Flight condition data

Variable	Description	Units
rho	Density	kg/m3
TAS	True Air Speed	m/s
q	Dynamic pressure	kg/(m*s2)
alpha	Attack angle	rad
beta	Sideslip angle	rad

Kinematics

Variable	Description	Units
lin_vel	(u, v, w) Absolute velocity of aircraft cog with respect to inertial frame of ref in body axes coordinates	m/s
ang_vel	(p, q, r) Absolute angular velocity of aircraft with respect to inertial frame of ref in body axes coordinates	rad/s

Attitude

Variable	Description	Units
euler_angles	(theta, phi, psi) pitch, roll, yaw	rad