-Simtime current simulator time [s]
-dt current simulator time step [s]
-
-3) aircraft state variables
-Dx_pilot x-location [ft]
-Dy_pilot y-location [ft]
-Dz_pilot z-location [ft]
-Dx_cg center of gravity x-location [ft]
-Dy_cg center of gravity y-location [ft]
-Dz_cg center of gravity z-location [ft]
-V_north x-velocity [ft/s]
-V_east y-velocity [ft/s]
-V_down z-velocity [ft/s]
-V_rel_wind total velocity [ft/s]
-Dynamic_pressure dynamic pressure [lb/ft^2]
-Alpha angle of attack [rad]
-Alpha_dot rate of change of alpha [rad/s]
-Beta sideslip angle [rad]
-Beta_dot rate of change of beta [rad]
-Gamma flight path angle [rad]
-P_body roll rate [rad/s]
-Q_body pitch rate [rad/s]
-R_body yaw rate [rad/s]
-Phi bank angle [rad]
-Theta pitch attitude angle [rad]
-Theta_dot rate change of theta [rad/s]
-Psi heading angle [rad]
-|long_trim
-|trim_inc
-M Mach number []
-Re Reynolds number []
-
-4) atmosphere properties
-Density air density [slug/ft^3]
-
-5) geometric variables
-bw wingspan [ft]
-cbar mean aerodynamic chord [ft]
-Sw wing planform area [ft^2]
-iw wing incidence angle [deg]
-bc canard span [ft]
-cc canard (mean) chord [ft]
-Sc canard area [ft^2]
-ic canard incidence angle [deg]
-bh horizontal tail span [ft]
-ch horizontal tail (mean) chord [ft]
-Sh horizontal tail area [ft^2]
-ih horizontal tail incidence angle [deg]
-bv vertical tail span (height) [ft]
-cv vertical tail (mean) chord [ft]
-iv vertical tail incidence angle [deg]
-Sv vertical tail area [ft^2]
-
-6) control surface properties
-Sa aileron area [ft^2]
-Se elevator area [ft^2]
-Sf flap area [ft^2]
-Sr rudder area [ft^2]
-Lat_control roll control input [?]
-Long_control pitch control input [?]
-Rudder_pedal yaw control input [?]
-aileron aileron deflection [rad]
-elevator elevator deflection [rad]
-rudder rudder deflection [rad]
-|flap flap deflection [rad]
-
-7) mass variables
-|Weight gross takeoff weight [lb]
-Mass aircraft mass (used by LaRC) [slug]
-I_xx roll inertia [slug-ft^2]
-I_yy pitch inertia [slug-ft^2]
-I_zz yaw inertia [slug-ft^2]
-I_xz lateral cross inertia [slug-ft^2]
-
-8) engine/propulsion variables
-|thrust thrust [lb]
-simpleSingle simple single engine max thrust [lb]
-|Throttle_pct throttle input [] # ie, this is the stick
-|Throttle[3] throttle deflection [%] # this is what gets used to determine thrust
-
-9) force/moment coefficients
-CD coefficient of drag []
-CY coefficient of side-force []
-CL coefficient of lift []
-Cl coefficient of roll moment []
-Cm coefficient of pitching moment []
-Cn coefficient of yaw moment []
-|CT coefficient of thrust []
-
-10) total forces/moments
-F_X_wind aerodynamic x-force in wind-axes [lb]
-F_Y_wind aerodynamic y-force in wind-axes [lb]
-F_Z_wind aerodynamic z-force in wind-axes [lb]
-F_X_aero aerodynamic x-force in body-axes [lb]
-F_Y_aero aerodynamic y-force in body-axes [lb]
-F_Z_aero aerodynamic z-force in body-axes [lb]
-F_X_engine propulsion x-force in body axes [lb]
-F_Y_engine propulsion y-force in body axes [lb]
-F_Z_engine propulsion z-force in body axes [lb]
-F_X_gear gear x-force in body axes [lb]
-F_Y_gear gear y-force in body axes [lb]
-F_Z_gear gear z-force in body axes [lb]
-F_X total x-force [lb]
-F_Y total y-force [lb]
-F_Z total z-force [lb]
-M_l_aero aero roll-moment in body-axes [ft-lb]
-M_m_aero aero pitch-moment in body-axes [ft-lb]
-M_n_aero aero yaw-moment in body-axes [ft-lb]
-M_l_engine prop roll-moment in body axes [ft-lb]
-M_m_engine prop pitch-moment in body axes [ft-lb]
-M_n_engine prop yaw-moment in body axes [ft-lb]
-M_l_gear gear roll-moment in body axes [ft-lb]
-M_m_gear gear pitch-moment in body axes [ft-lb]
-M_n_gear gear yaw-moment in body axes [ft-lb]
-M_l_rp total roll-moment [ft-lb]
-M_m_rp total pitch-moment [ft-lb]
-M_n_rp total yaw-moment [ft-lb]
-
-11) landing gear properties
-|cgear gear damping constant [?]
-|kgear gear spring constant [?]
-|muGear gear rolling friction coef [?]
-|strutLength gear strut length [ft]
-
-12) icing model paramters
+Simtime current simulator time [s]
+dt current simulator time step [s]
+
+3) aircraft position data
+Lat_geocentric geocentric latitude of CG [rad]
+Lon_geocentric geocentric longitude of CG [rad]
+Radius_to_vehicle distance of CG from inertial frame [ft]
+Latitude geodetic latitude of CG [rad]
+Longitude geodetic longitude of CG [rad]
+Altitude height of CG above reference ellipsoid [ft]
+Phi Euler bank/roll angle [rad]
+Theta Euler pitch attitude angle [rad]
+Psi Euler heading angle [rad]
+
+4) aircraft accelerations
+V_dot_north local x-acceleration [ft/s^2]
+V_dot_east local y-acceleration [ft/s^2]
+V_dot_down local z-acceleration [ft/s^2]
+U_dot_body body x-acceleration [ft/s^2]
+V_dot_body body y-acceleration [ft/s^2]
+W_dot_body body z-acceleration [ft/s^2]
+A_X_pilot pilot x-acceleration [ft/s^2]
+A_Y_pilot pilot y-acceleration [ft/s^2]
+A_Z_pilot pilot z-acceleration [ft/s^2]
+A_X_cg center of gravity x-acceleration [ft/s^2]
+A_Y_cg center of gravity x-acceleration [ft/s^2]
+A_Z_cg center of gravity x-acceleration [ft/s^2]
+N_X_pilot pilot x-acceleration [ft/s^2]
+N_Y_pilot pilot y-acceleration [ft/s^2]
+N_Z_pilot pilot z-acceleration [ft/s^2]
+N_X_cg center of gravity x-acceleration [ft/s^2]
+N_Y_cg center of gravity Y-acceleration [ft/s^2]
+N_Z_cg center of gravity Z-acceleration [ft/s^2]
+P_dot_body roll rate acceleration [rad/s^2]
+Q_dot_body pitch rate acceleration [rad/s^2]
+R_dot_body yaw rate acceleration [rad/s^2]
+
+5) aircraft velocities
+V_north local x-velocity [ft/s]
+V_east local y-velocity [ft/s]
+V_down local z-velocity [ft/s]
+V_north_rel_ground local x-velocity with respect to ground [ft/s]
+V_east_rel_ground local y-velocity with respect to ground [ft/s]
+V_down_rel_ground local z-velocity with respect to ground [ft/s]
+V_north_airmass local x-velocity of steady airmass [ft/s]
+V_east_airmass local y-velocity of steady airmass [ft/s]
+V_down_airmass local z-velocity of steady airmass [ft/s]
+V_north_rel_airmass local x-velocity wrt steady airmass [ft/s]
+V_east_rel_airmass local y-velocity wrt steady airmass [ft/s]
+V_down_rel_airmass local z-velocity wrt steady airmass [ft/s]
+U_gust local linear turbulence x-velocity [ft/s]
+V_gust local linear turbulence y-velocity [ft/s]
+W_gust local linear turbulence z-velocity [ft/s]
+U_body wind x-velocity in body axis [ft/s]
+V_body wind y-velocity in body axis [ft/s]
+W_body wind z-velocity in body axis [ft/s]
+V_rel_wind total wind velocity (freestream) [ft/s]
+V_true_kts true velocity [kts]
+V_rel_ground total velocity wrt ground [ft/s]
+V_inertial total inertial velocity [ft/s]
+V_ground_speed velocity at right angles to local vertical [ft/s]
+V_equiv equivalent airspeed [ft/s]
+V_equiv_kts equivalent airspeed [kts]
+V_calibrated calibrated indicated airspeed [ft/s]
+V_calibrated_kts calibrated indicated airspeed [kts]
+P_local local roll rate [rad/s]
+Q_local local pitch rate [rad/s]
+R_local local yaw rate [rad/s]
+P_body body roll rate [rad/s]
+Q_body body pitch rate [rad/s]
+R_body body yaw rate [rad/s]
+P_total roll rate of body axis wrt local axis [rad/s]
+Q_total pitch rate of body axis wrt local axis [rad/s]
+R_total yaw rate of body axis wrt local axis [rad/s]
+Phi_dot change in bank angle rate [rad/s]
+Theta_dot change in pitch attitude angle rate [rad/s]
+Psi_dot change in heading angle rate [rad/s]
+Latitude_dot change in geocentric latitude rate [rad/s]
+Longitude_dot change in geocentric longitude rate [rad/s]
+Radius_dot change in geocentric radius rate [ft/s]
+
+6) angles
+Alpha angle of attack [rad]
+Alpha_deg angle of attack [deg]
+Alpha_dot rate of change of alpha [rad/s]
+Alpha_dot_deg rate of change of alpha [deg/s]
+Beta sideslip angle [rad]
+Beta_deg sideslip angle [deg]
+Beta_dot rate of change of beta [rad]
+Beta_dot_deg rate of change of beta [deg]
+Gamma_vert local vertical flight path angle [rad]
+Gamma_ver_deg local vertical flight path angle [deg]
+Gamma_horiz local horizontal flight path angle [rad]
+Gamma_horiz_deg local horizontal flight path angle [deg]
+
+7) atmosperic properties
+Density atmospheric density [slug/ft^3]
+V_sound speed of sound [ft/s]
+Mach_number free-stream Mach number []
+M Mach number []
+Re Reynolds number []
+Static_pressure static pressure [lb/ft^2]
+Total_pressure total pressure [lb/ft^2]
+Impact_pressure impact pressure [lb/ft^2]
+Dynamic_pressure dynamic pressure [lb/ft^2]
+Static_temperature static temperature [deg F?]
+Total_temperature total temperature [deg F?]
+
+8) Earth properties
+Gravity acceleration due to gravity [ft/s^2]
+Sea_level_radius local Earth radius [ft]
+Earth_position_angle Earth rotation angle since reference time [rad]
+Runway_altitude runway height above local sea level [ft]
+Runway_latitude runway latitude [rad]
+Runway_longitude runway longitude [rad]
+Runway_heading runway heading [rad]
+Radius_to_rwy geocentric radius to runway [ft]
+D_pilot_north_of_rwy local pilot x-distance from runway [ft]
+D_pilot_east_of_rwy local pilot y-distance from runway [ft]
+D_pilot_down_of_rwy local pilot z-distance from runway [ft]
+X_pilot_rwy pilot x-distance from rwy in rwy axis [ft]
+Y_pilot_rwy pilot y-distance from rwy in rwy axis [ft]
+H_pilot_rwy pilot z-distance from rwy in rwy axis [ft]
+D_cg_north_of_rwy local cg x-distance from runway [ft]
+D_cg_east_of_rwy local cg y-distance from runway [ft]
+D_cg_down_of_rwy local cg z-distance from runway [ft]
+X_cg_rwy cg x-distance from rwy in rwy axis [ft]
+Y_cg_rwy cg y-distance from rwy in rwy axis [ft]
+H_cg_rwy cg z-distance from rwy in rwy axis [ft]
+
+9) aircraft geometric variables
+bw wingspan [ft]
+cbar mean aerodynamic chord [ft]
+Sw wing planform area [ft^2]
+|iw wing incidence angle [deg]
+|bc canard span [ft]
+|cc canard (mean) chord [ft]
+|Sc canard area [ft^2]
+|ic canard incidence angle [deg]
+bh horizontal tail span [ft]
+ch horizontal tail (mean) chord [ft]
+Sh horizontal tail area [ft^2]
+ih horizontal tail incidence angle [deg]
+|bv vertical tail span (height) [ft]
+|cv vertical tail (mean) chord [ft]
+|iv vertical tail incidence angle [deg]
+|Sv vertical tail area [ft^2]
+Dx_pilot reference pilot x-location [ft]
+Dy_pilot reference pilot y-location [ft]
+Dz_pilot referende pilot z-location [ft]
+Dx_cg reference center of gravity x-loc [ft]
+Dy_cg reference center of gravity y-loc [ft]
+Dz_cg reference center of gravity z-loc [ft]
+
+10) aircraft control surface properties
+|Sa aileron area [ft^2]
+|Se elevator area [ft^2]
+|Sf flap area [ft^2]
+|Sr rudder area [ft^2]
+Long_control pitch control input []
+Long_trim longitudinal trim input [rad]
+set_Long_trim set longitudinal trim to constant[rad]
+zero_Long_trim set longitudinal trim to zero [deg]
+elevator elevator deflection [rad]
+Lat_control roll control input []
+aileron aileron deflection [rad]
+Rudder_pedal yaw control input []
+rudder rudder deflection [rad]
+|flap flap deflection [rad]
+
+11) user-specified control surface deflections
+elevator_step_angle elevator step input angle [deg]
+elevator_step_startTime elevator step input starting time [s]
+elevator_singlet_angle elevator singlet input angle [deg]
+elevator_singlet_startTime elevator singlet input starting time [s]
+elevator_singlet_duration elevator singlet time duration [s]
+elevator_doublet_angle elevator singlet input angle [deg]
+elevator_doublet_startTime elevator doublet input starting time [s]
+elevator_doublet_duration elevator doublet TOTAL time duration [s]
+elevator_input_file file of elevator deflections vs. time [s,deg]
+aileron_input_file file of aileron deflections vs. time [s,deg]
+rudder_input_file file of rudder deflections vs. time [s,deg]
+
+12) mass variables
+Weight gross takeoff weight [lb]
+Mass aircraft mass (used by LaRCsim) [slug]
+I_xx roll inertia [slug-ft^2]
+I_yy pitch inertia [slug-ft^2]
+I_zz yaw inertia [slug-ft^2]
+I_xz lateral cross inertia [slug-ft^2]
+
+13) engine/propulsion variables
+|thrust engine thrust [lb]
+simpleSingle treat all engines as one; max thrust [lb]
+Throttle_pct throttle input ("stick") []
+Throttle_3 throttle deflection (determines thrust) [%]
+
+14) force/moment coefficients
+CD coefficient of drag []
+CY coefficient of side-force []
+CL coefficient of lift []
+Cl coefficient of roll moment []
+Cm coefficient of pitching moment []
+Cn coefficient of yaw moment []
+|CT coefficient of thrust []
+
+15) total forces/moments
+F_X_wind aerodynamic x-force in wind-axes [lb]
+F_Y_wind aerodynamic y-force in wind-axes [lb]
+F_Z_wind aerodynamic z-force in wind-axes [lb]
+F_X_aero aerodynamic x-force in body-axes [lb]
+F_Y_aero aerodynamic y-force in body-axes [lb]
+F_Z_aero aerodynamic z-force in body-axes [lb]
+F_X_engine propulsion x-force in body axes [lb]
+F_Y_engine propulsion y-force in body axes [lb]
+F_Z_engine propulsion z-force in body axes [lb]
+F_X_gear gear x-force in body axes [lb]
+F_Y_gear gear y-force in body axes [lb]
+F_Z_gear gear z-force in body axes [lb]
+F_X total x-force in body-axes [lb]
+F_Y total y-force in body-axes [lb]
+F_Z total z-force in body-axes [lb]
+F_north total x-force in local-axes [lb]
+F_east total y-force in local-axes [lb]
+F_down total z-force in local-axes [lb]
+M_l_aero aero roll-moment in body-axes [ft-lb]
+M_m_aero aero pitch-moment in body-axes [ft-lb]
+M_n_aero aero yaw-moment in body-axes [ft-lb]
+M_l_engine prop roll-moment in body axes [ft-lb]
+M_m_engine prop pitch-moment in body axes [ft-lb]
+M_n_engine prop yaw-moment in body axes [ft-lb]
+M_l_gear gear roll-moment in body axes [ft-lb]
+M_m_gear gear pitch-moment in body axes [ft-lb]
+M_n_gear gear yaw-moment in body axes [ft-lb]
+M_l_rp total roll-moment [ft-lb]
+M_m_rp total pitch-moment [ft-lb]
+M_n_rp total yaw-moment [ft-lb]
+
+16) landing gear properties
+Dx_gear x-offset from CG [ft]
+Dy_gear y-offset from CG [ft]
+Dz_gear z-offset from CG [ft]
+cgear gear damping constant [lb/ft/s]
+kgear gear spring constant [lb/ft]
+muGear gear rolling friction coef [-]
+|strutLength gear strut length [ft]
+
+17) icing model parameters