Aero input and outputs

Temp info from old mailing-list till get more info:

There isn't much formal documentation at the moment that is available for the JSBSim properties. If you have some specific properties you'd like to know about, post the queries here. For starters, here are the aerodynamic properties (and definitions) of the Cessna 172:

  ********************
  ****** INPUTS ******
  ********************

Location of the aerodynamic reference point in the aircraft structural frame, measured in inches:

   /fdm/jsbsim/metrics/aero-rp-x-in
   /fdm/jsbsim/metrics/aero-rp-y-in
   /fdm/jsbsim/metrics/aero-rp-z-in

Maximum and minimum alpha (angle of attack) in degrees:

   /fdm/jsbsim/aero/alpha-max-deg
   /fdm/jsbsim/aero/alpha-min-deg

Wing span/(2*Velocity)

   /fdm/jsbsim/aero/bi2vel

Wing chord/(2*Velocity)

   /fdm/jsbsim/aero/ci2vel

  *********************
  ****** OUTPUTS ******
  *********************

Ground effect factors for lift and drag:

   /fdm/jsbsim/aero/function/ground-effect-factor-lift
   /fdm/jsbsim/aero/function/ground-effect-factor-drag

Runtime-created aerodynamic force and moment components from definitions in the <aerodynamics> section of the configuration file (varies per-aircraft):

   /fdm/jsbsim/aero/coefficient/CLwbh
   /fdm/jsbsim/aero/coefficient/CLDf
   /fdm/jsbsim/aero/coefficient/CLDe
   /fdm/jsbsim/aero/coefficient/CLadot
   /fdm/jsbsim/aero/coefficient/CLq
   /fdm/jsbsim/aero/coefficient/CDo
   /fdm/jsbsim/aero/coefficient/CDDf
   /fdm/jsbsim/aero/coefficient/CDwbh
   /fdm/jsbsim/aero/coefficient/CDDe
   /fdm/jsbsim/aero/coefficient/CDbeta
   /fdm/jsbsim/aero/coefficient/CYb
   /fdm/jsbsim/aero/coefficient/CYda
   /fdm/jsbsim/aero/coefficient/CYdr
   /fdm/jsbsim/aero/coefficient/CYp
   /fdm/jsbsim/aero/coefficient/CYr
   /fdm/jsbsim/aero/coefficient/Clb
   /fdm/jsbsim/aero/coefficient/Clp
   /fdm/jsbsim/aero/coefficient/Clr
   /fdm/jsbsim/aero/coefficient/Clda
   /fdm/jsbsim/aero/coefficient/Cldr
   /fdm/jsbsim/aero/coefficient/Cmalpha
   /fdm/jsbsim/aero/coefficient/CmDf
   /fdm/jsbsim/aero/coefficient/Cmq
   /fdm/jsbsim/aero/coefficient/Cmadot
   /fdm/jsbsim/aero/coefficient/Cmo
   /fdm/jsbsim/aero/coefficient/Cmde
   /fdm/jsbsim/aero/coefficient/Cnb
   /fdm/jsbsim/aero/coefficient/Cnp
   /fdm/jsbsim/aero/coefficient/Cnr
   /fdm/jsbsim/aero/coefficient/Cnda
   /fdm/jsbsim/aero/coefficient/Cndr

Alpha of the wing in radians (includes the angle of incidence of the wing, if input):

   /fdm/jsbsim/aero/alpha-wing-rad

Stall hysteresis, normalized:

   /fdm/jsbsim/aero/stall-hyst-norm

Angles of attack and sideslip in radians and degrees (and the magnitudes):

   /fdm/jsbsim/aero/alpha-rad
   /fdm/jsbsim/aero/beta-rad
   /fdm/jsbsim/aero/mag-beta-rad
   /fdm/jsbsim/aero/alpha-deg
   /fdm/jsbsim/aero/beta-deg
   /fdm/jsbsim/aero/mag-beta-deg

Dynamic pressure in psf:

   /fdm/jsbsim/aero/qbar-psf

Dynamic pressure in the body axis XZ plane:

   /fdm/jsbsim/aero/qbarUW-psf

Dynamic pressure in the body axis XY plane:

   /fdm/jsbsim/aero/qbarUV-psf

Time rate of change in alpha and sideslip in deg/sec and rad/sec:

   /fdm/jsbsim/aero/alphadot-rad_sec
   /fdm/jsbsim/aero/betadot-rad_sec
   /fdm/jsbsim/aero/alphadot-deg_sec
   /fdm/jsbsim/aero/betadot-deg_sec

Altitude of CG divided by wing span:

   /fdm/jsbsim/aero/h_b-cg-ft

Altitude of MAC divided by wing span:

   /fdm/jsbsim/aero/h_b-mac-ft

Aerodynamic rotational rates in rad/sec (includes wind effects, if any):

   /fdm/jsbsim/velocities/p-aero-rad_sec
   /fdm/jsbsim/velocities/q-aero-rad_sec
   /fdm/jsbsim/velocities/r-aero-rad_sec

Aerodynamic velocities in ft/sec (includes wind effects, if any):

   /fdm/jsbsim/velocities/u-aero-fps
   /fdm/jsbsim/velocities/v-aero-fps
   /fdm/jsbsim/velocities/w-aero-fps

The body axis aerodynamic force vector of the aircraft in lbs:

   /fdm/jsbsim/forces/fbx-aero-lbs
   /fdm/jsbsim/forces/fby-aero-lbs
   /fdm/jsbsim/forces/fbz-aero-lbs

The stability axis aerodynamic force vector of the aircraft in lbs:

   /fdm/jsbsim/forces/fwx-aero-lbs
   /fdm/jsbsim/forces/fwy-aero-lbs
   /fdm/jsbsim/forces/fwz-aero-lbs

The body axis aerodynamic moment vector of the aircraft in ft-lbs:

   /fdm/jsbsim/moments/l-aero-lbsft
   /fdm/jsbsim/moments/m-aero-lbsft
   /fdm/jsbsim/moments/n-aero-lbsft

The lift coefficient squared:

   /fdm/jsbsim/aero/cl-squared

Dynamic pressure times reference area:

   /fdm/jsbsim/aero/qbar-area