The following table provides a brief description of the fields present in X‑Plane 10’s Data Set screen. Note that this list is current as of X‑Plane 10.30.

In this table, note that each group of data fields is labeled as it would be in the Data Input & Output window. For instance, to see the values of the “f-act” or “frame time” variables, you would consult the table and see that those variables are under the frame rate label. Simply check the frame rate box in the Data Input & Output to see those variables. Alternately, if you know you want frame
rate-related variables, you could consult the portion of the table under the frame rate heading to find out what data is available. Where the meaning of a label in the Data Input & Output window is not immediately obvious, a longer version of the label is given—for instance, “Simulator statistics (sim stats).”

Field labelDescriptions of fields available in X‑Plane 10’s data output
Frame rate
f-act, /secThe actual frame rate being displayed by X-Plane. Unless your computer is bogged down, this will be the same as f-sim.
f-sim, /secThe frame rate the simulator is “pretending” to have in order to keep the flight model from failing.
frame, timeThe time required to render one frame, in seconds.
cpu, time
gpu, time
grnd, ratio
flit, ratio
Times
real, timeThe number of seconds, in the real world, elapsed since the simulator was launched.
totl, timeThe number of seconds elapsed since the simulator was launched minus time spent in a loading screen.
missn, timeThe time since the start of the “mission” (generally the time since the last time an aircraft or location was loaded).
timer, timeThe time elapsed on a timer for general use.
zulu, time“Zulu” time (Greenwich Mean Time, or GMT) in the simulator, in decimal hours (e.g., 3.5 for 3:30 a.m.).
local, timeLocal time in the simulator, in decimal hours.
hobbs, timeThe aircraft’s Hobbs time (a measurement of how long the aircraft’s systems have been run).
Simulator statistics (sim stats)
explo, DIM
explo, USE
cratr, DIM
cratr, USE
puffs, TOT
puffs, VIS
tris, vis
q, depth
Speeds
Vind, kiasThe craft’s indicated airspeed, in knots indicated airspeed.
Vind, keasThe craft’s indicated airspeed, in knots equivalent airspeed (the calibrated airspeed corrected for adiabatic compressible flow at the craft’s current altitude).
Vtrue, ktasThe craft’s true airspeed (the speed of the craft relative to undisturbed air), in knots true airspeed.
Vtrue, ktgsTrue airspeed, in knots true ground speed.
Vind, mphThe craft’s indicated airspeed, in miles per hour.
Vtrue, mphasThe craft’s true airspeed, in miles per hour airspeed.
Vtrue, mphgsThe craft’s true airspeed, in miles per hour ground speed.
Aircraft Mach speeds, vertical velocity, and g-loads (mach, VVI, G-load)
Mach, ratioThe aircraft’s current speed, as a ratio to Mach 1.
VVI, fpmThe aircraft’s current vertical velocity, in feet per minute. If everything is working as it should, this is normal to the local horizon under the aircraft.
Gload, normlThe g-load across the aircraft, relative to the aircraft body-axis, if all is working as it should.
Gload, axialThe axial g-load on the aircraft.
Gload, sideThe side g-load on the aircraft.
Atmosphere: weather
SLprs, inHGSLprs, in inches mercury.
SLtmp, degCSLtmp, in degrees Celsius.
wind, speedThe wind speed around the aircraft, in knots.
wind, dirThe wind direction, in degrees clockwise deviation from north. Wind blowing from north to south has direction 0.0, while wind blowing from west to east has direction 270.0.
trb, loclAmount of local turbulence.
prec, loclAmount of local precipitation.
hail, loclAmount of local hail.
Atmosphere: aircraft
AMprs, inHGAMprs, in inches mercury.
AMtmp, degCAMtmp, in degrees Celsius.
LEtmp, degCLEtmp, in degrees Celsius.
dens, ratioThe aircraft’s density ratio.
A, ktasA, in knots true airspeed.
Q, psfQ, dynamic pressure or velocity pressure, in pounds per square foot.
gravi, fts2Gravitational force, in feet per second squared.
System pressures
baro, inHGBarometric pressure, in inches mercury.
edens, part
vacum, ratio
elec, ratio
AHRS, ratioPressure in the attitude heading reference system (AHRS), as a ratio to normal.
Joystick aileron, elevator, and rudder input (joystick ail/elv/rud)
elev, yoke1The user’s elevator input, as a ratio to full upward deflection. For instance, a value of –1.000 indicated the user is commanding the aircraft’s nose down as fast as possible.
ailrn, yoke1The user’s aileron input, as a ratio to full rightward deflection. For instance, a value of –1.000 indicated the user is commanding the aircraft to roll left as fast as possible.
ruddr, yoke1The user’s rudder input, as a ratio to full rightward deflection. For instance, a value of –1.000 indicated the user is commanding the aircraft to yaw left as fast as possible.
Other flight controls
vect, rqstThe requested thrust vectoring.
sweep, rqstThe requested wing sweep.
incid, rqstThe requested wing incidence.
dihed, rqstThe requested wing dihedral.
retra, rqstThe requested wing retraction.
water, jettsWater jettisoned.
Artificial stability inputs for aileron, elevator, and rudder (art stab ail/elv/rud)
elev, astabThe artificial stability system’s elevator input, as a ratio to full upward deflection.
ailrn, astabThe artificial stability system’s aileron input, as a ratio to full rightward deflection.
ruddr, astabThe artificial stability system’s aileron input, as a ratio to full rightward deflection.
Flight control deflections for aileron, elevator, and rudder (flight con ail/elv/rud)
elev, surfThe proportion of the elevator deflected for upward pitch. If the elevators and flight inputs are in sync, this will match the combined yoke and artificial stability system input.
ailrn, surfThe proportion of the aileron deflected for rightward roll. If the elevators and flight inputs are in sync, this will match the combined yoke and artificial stability system input.
ruddr, surfThe proportion of the rudder deflected for rightward yaw. If the elevators and flight inputs are in sync, this will match the combined yoke and artificial stability system input.
nwhel, steerThe nosewheel’s direction, in degrees of deviation from pointing straight ahead. For instance, a value of –31.000 indicated the wheel is pointed left 31 degrees.
Wing sweep and thrust vectoring (wing sweep/thrust vect)
sweep, 1, degThe craft’s wing sweep, in degrees back from normal.
sweep, 2, degThe craft’s wing sweep, in degrees back from normal.
sweep, h, degThe craft’s wing sweep, in degrees.
vect, ratio
sweep, ratioThe craft’s wing sweep, as a ratio to fully forward.
incid, ratioThe craft’s wing incidence, as a ratio to fully angled.
dihed, ratioThe craft’s wing dihedral, as a ratio to fully angled.
retra, ratioThe craft’s wing retraction, as a ratio to fully retracted.
Trim, flaps, slats, and speedbrakes (trim/flap/slat/s-brakes)
trim, elevElevator trim.
trim, ailrnAileron trim.
trim, ruddrRudder trim.
flap, handl
flap, postnFlap position.
slat, ratioSlat position.
sbrak, handl
sbrak, postnSpeedbrake position.
Landing gear and brakes (gear/brakes)
gear, 0/1Gear extended status.
wbrak, part
lbrak, partLeft toe brake depression.
rbrak, partRight toe brake depression.
Angular moments
M, ftlbThe aircraft’s total mass.
L, ftlbThe aircraft’s total angular momentum, including all forces (when all is working as it should).
N, ftlb
Angular velocities
Q, rad/sPitch rate, measured in body-axes (when all is working as it should).
P, rad/sRoll rate, measured in body-axes (when all is working as it should).
R, rad/sYaw rate, measured in body-axes (when all is working as it should).
Pitch, roll, headings
pitch, degThe aircraft’s pitch, measured in body-axis Euler angles.
roll, degThe aircraft’s roll, measured in body-axis Euler angles.
hding, trueThe aircraft’s true heading, measured in body-axis Euler angles.
hding, magThe aircraft’s magnetic heading, in degrees.
Angle of attack, sideslip, and paths (AoA, side-slip, paths)
alpha, degThe aircraft’s angle of attack, in degrees.
beta, degThe aircraft’s angle of sideslip, in degrees.
hpath, deg
vpath, deg
slip, deg
Magnetic compass (mag compass)
mag, comp
mavar, deg
Latitude, longitude, and altitude (lat, lon, altitude)
lat, degThe aircraft’s latitudinal location, in degrees.
lon, degThe aircraft’s longitudinal location, in degrees.
alt, ftmslThe aircraft’s altitude, in feet above mean sea level.
alt, ftaglThe aircraft’s altitude, in feet above ground level.
on, runwy
alt, ind
lat, south
lon, west
Location, velocity, and distance traveled (loc, vel, dist traveled)
X, mRelative to the inertial axes.
Y, mRelative to the inertial axes.
Z, mRelative to the inertial axes.
vX, m/sRelative to the inertial axes.
vY, m/sRelative to the inertial axes.
vZ, m/sRelative to the inertial axes.
dist, ft
dist, nm
Latitude for all aircraft (all planes: lat)
lat n, degAircraft n’s latitudinal location (zero if craft n does not exist).
Longitude for all aircraft (all planes: lon)
lon n, degAircraft n’s longitudinal location (zero if craft n does not exist).
Altitude for all aircraft (all planes: alt)
alt n, ftmslAircraft n’s altitude location (zero if craft n does not exist).
Commanded throttle (throttle command)
thron, partAircraft n’s commanded throttle.
Actual throttle (throttle actual)
thron, partAircraft n’s actual throttle.
Engine or propeller mode (feather-norm-beta-revers)
moden, 0123Engine n’s current “mode,” where 0 corresponds to feathered, 1 corresponds to normal, 2 to beta, and 3 to reverse thrust.
Propeller setting (prop setting)
propn, setAircraft n’s propeller setting.
Mixture setting
mixtn, ratioAircraft n’s mixture setting.
Carburetor heat setting (carb heat setting)
heatn, ratioAircraft n’s carburetor heat setting.
Cowl flap setting
cowln, setAircraft n’s cowl flap setting.
Magneto settings
magnn, setAircraft n’s magneto setting.
Starter timeout
starn, secAircraft n’s starter timeout.
Engine power
power, n, hpEngine n’s power, in horsepower.
Engine thrust
thrst, n, lbThe thrust, in pounds, generated by engine n.
Engine torque
trq n, ftlbThe torque, in foot-pounds, generated by engine n.
Engine RPM
rpm n, enginThe current RPM of engine n.
Propeller RPM (prop RPM)
rpm n, propThe current RPM of propeller n.
Propeller pitch (prop pitch)
ptchn, degThe current pitch of propeller n.
Slipstream/propwash/jetwash (propwash/jetwash)
pwash, kt
N1
N1 n, pcntThe current N1 for engine n.
N2
N2 n, pcntThe current N2 for engine n.
Manifold pressure (MP)
MP n, inhgThe current manifold pressure for engine n, in inches mercury.
Engine pressure ratio (EPR)
EPR n, partThe current engine pressure ratio for engine n.
Fuel flow (FF)
FF n, lb/hThe current fuel flow for engine n, in pounds per hour.
Interstage turbine temperature (ITT)
ITT n, degThe current interstage turbine temperature for engine n.
Exhaust gas temperature (EGT)
EGT n, degThe current exhaust gas temperature for engine n.
Cylinder head temperature (CHT)
CHT n, degThe current cylinder head temperature for engine n.
Oil pressure
OILPn, psiThe current oil pressure for engine n, in pounds per square inch.
Oil temperature (Oil temp)
OILTn, degThe current oil temperature for engine n.
Fuel pressure
FUEPn, psiThe current fuel pressure for engine n, in pounds per square inch.
Generator amperage
genrn, ampThe current generator amperage for generator n.
Battery amperage
battn, ampThe current batter amperage for battery n.
Battery voltage
battn, voltThe current battery voltage for battery n.
Fuel pump on/off
pumpn, 0/1Fuel pump n’s status.
Idle speed lo/hi
idlen 0/1Engine n’s idle speed.
Battery on/off
battn, 0/1Battery n’s status.
Generator on/off
genrn, 0/1Generator n’s status.
Inverter on/off
invrn, 0/1Inverter n’s status.
FADEC on/off
fadec, 0/1The FADEC’s status.
Igniter on/off
ignin, 0/1Igniter n’s status.
Fuel weights
fuel, n lbFuel tank n’s weight, in pounds.
Payload weights and center of gravity (payload weights and CG)
empty, lbThe aircraft’s empty weight, in pounds.
payld, lbThe aircraft’s payload weight, in pounds.
fuel, totlbThe total weight of the aircraft’s fuel, in pounds.
jetti, lbThe aircraft’s jettisonable weight, in pounds.
curnt, lbThe aircraft’s current weight, in pounds.
maxim, lbThe aircraft’s maximum weight, in pounds.
cg, ftrefThe aircraft’s center of gravity, measured in feet behind the reference point.
Aerodynamic forces, in wind axes (aero forces)
lift, lbThe lift acting on the aircraft, in pounds.
drag, lbThe drag acting on the aircraft, in pounds.
side, lbThe side forces acting on the aircraft, in pounds.
Engine forces
norml, lb
axial, lb
side, lb
Landing gear vertical force (landing gear vert force)
gear, lb
Landing gear deployment
gear, rat
Lift-to-drag ratio and coefficients (lift over drag coeffs)
L/D, ratioThe aircraft’s lift-to-drag ratio.
cl, total
cd, total
L/D, *etaP
Propeller efficiency (prop efficiency)
Peffn, ratioPropeller n’s efficiency ratio.
Aileron deflections (defs: ailerons)
Lailn,n,degThe deflection of left aileron n, in degrees.
Railn, n, degThe deflection of right aileron n, in degrees.
Roll spoiler deflection (defs: roll spoilers)
Lsplr,n, degThe deflection of left spoiler n, in degrees.
Rsplr, n, degThe deflection of right spoiler n, in degrees.
Elevator deflections (defs: elevators)
elevn, degThe deflection of elevator n, in degrees.
Rudder deflection (defs: rudders)
rudrn, degThe deflection of rudder n, in degrees.
Yaw brake deflections (defs: yaw brakes)
Lyawb, degThe deflection of the left yaw brake, in degrees.
Ryawb, degThe deflection of the right yaw brake, in degrees.
Control forces
pitch, lbThe pitch forces acting on the controls in the pilot’s hands.
roll, lbThe roll forces acting on the controls in the pilot’s hands.
hdng, lbThe heading forces acting on the controls in the pilot’s hands.
l-brk, lbThe left brake forces acting on the controls at the pilot’s feet.
r-brk, lbThe right brake forces acting on the controls at the pilot’s feet.
Total vertical thrust vectors (total vert thrust vects)
vertn, tvect
Total lateral thrust vectors (total lat thrust vects)
latrn, tvect
Pitch cyclic disc tilts
pitch, cycli
Roll cyclic disc tilts
roll, cycli
Pitch cyclic flapping
pitch, flap
Roll cyclic flapping
roll, flap
Ground effect (lift) from wings (grnd effect lift, wings)
wingn, L cl*
wingn, R cl*
Ground effect (drag) from wings (grnd effect drag, wings)
wingn, Lcdi*
wingn, Rcdi*
Ground effect (wash) from wings (grnd effect wash, wings)
wingn, wash*
Ground effect (lift) from stabilizers (grnd effect lift, stabs)
hstab, L cl*
hstab, R cl*
vstb1, cl*
Ground effect (drag) from stabilizers (grnd effect drag, stabs)
hstab, Lcdi*
hstab, Rcdi*
vstbn, cdi*
Ground effect (wash) from stabilizers (grnd effect wash, stabs)
hstab, wash*
vstbn, wash*
Ground effect (lift) from propellers (grnd effect lift, props)
propn, cl*
Ground effect (drag) from propellers (grnd effect drag, props)
propn, cdi*
Wing lift
wingn, liftThe lift generated by wing n.
Wing drag
wingn, dragThe drag generated by wing n.
Stabilizer lift (stab lift)
hstab, liftThe lift generated by the horizontal stabilizer.
vstbn, liftThe lift generated by the vertical stabilizer.
Stabilizer drag (stab drag)
hstab, dragThe drag generated by the horizontal stabilizer.
vstbn, dragThe drag generated by the vertical stabilizer.
COM 1/2 frequency
COM n, freqThe current frequency of the COM n radio.
COM n, stbyThe standby frequency of the COM n radio.
COM, xmtThe transmit status of the COM n.
NAV 1/2 frequency
NAV n, freqThe current frequency of the NAV n radio.
NAV n, stbyThe standby frequency of the NAV n radio.
NAV n, type
NAV 1/2 OBS
NAV n, OBS
NAV n, s-crs
NAV n, flag
NAV n deflections
NAV n, n-typ
NAV n, to-fr
NAV n, m-crs
NAV n, r-brg
NAV n, dme-d
NAV n, h-def
NAV n, v-def
ADF 1/2 status
ADF n, freq
ADF n, card
ADF n, r-brg
ADF n, n-typ
DME status
DME, nav01
DME, mode
DME, found
DME, dist
DME, speed
DME, time
DME, n-typ
DME–3, freq
GPS status
GPS, mode
GPS, index
dist, nm
OBS, mag
crs, mag
rel, brng
hdef, dots
vdef, dots
Transponder status (XPNDR status)
trans, mode
trans, sett
trans, ID
trans, inter
Marker status
OM, morseSignal from outer marker (OM)
MM, morseSignal from middle marker (MM)
IM, morseSignal from inner marker (IM)
audio, activ
Switches 1: electrical
avio, 0/1The status of the AVIO switch.
nav, liteThe status of the navigation light switch.
beacn, liteThe status of the beacon switch.
strob, liteThe status of the strobe light switch.
land, liteThe status of the landing light switch.
taxi, liteThe status of the taxi light switch.
Switches 2: EFIS
ECAM, modeThe ECAM mode.
EFIS, sel n
HSI, sel n
HSI, arc
map, r-sel
map, range
Switches 3: Autopilot, flight director, and head-up display (switches 3: AP/f-dir/HUD)
ap, src
fdir, mode
fdir, ptch
fdir, roll
HUD, power
HUD, brite
Switches 4: anti-ice
deice, all
deice, inlet
deice, prop
deice, windo
deice-n, pitot
deice, AOA
deice, wing
Switches 5: anti-ice/fuel
alt, airn
auto, ignit
manul, ignit
l-eng, tank
r-eng, tank
Switches 6: clutch and artificial stability (switches 6: clutch/astab)
prero, engag
clutc, ratio
art, ptch
art, roll
yaw, damp
auto, brake
Switches 7: miscellaneous (switches 7: misc)
tot, energ
radal, feet
prop, sync
fethr, mode
puffr, power
water, scoop
arrst, hook
chute, deply
Annunciators: general
mast, cau
mast, war
mast, accp
auto, disco
low, vacum
low, volt
fuel, quant
hyd, press
Annunciators: general
yawda, on
sbrk, on
GPWS, warn
ice, warn
pitot, off
cabin, althi
afthr, arm
ospd, time
Annunciators: engine
fuel, press
oil, press
oil, temp
inver, warn
gener, warn
chip, detec
engin, fire
ignit, 0/1
Armed autopilot functions (autopilot arms)
nav, arm
alt, arm
app, arm
vnav, enab
vnav, arm
vnav, time
gp, enabl
app, typ
Autopilot modes
auto, throt
mode, hding
mode, alt
bac, 0/1
app,
sync, butn
Autopilot values
set, speedThe desired speed setting for the autopilot.
set, hdingThe desired heading setting for the autopilot.
set, vviThe desired vertical velocity setting for the autopilot.
dial, alt
vnav, alt
use, alt
sync, roll
sync, pitch
Weapon status
hdng, delta
pitch, delta
R, d/sec
Q, d/sec
rudd, ratio
elev, ratio
V, kts
dis, ft
Pressurization status
alt, set
vvi, set
alt, act
vvi, act
test, time
diff, psi
dump, all
bleed, src
Auxiliary power unit and ground power unit status (APU/GPU status)
APU, eqipd
APU, swtch
APU, runng
APU, N1
APU, genrt
GPU, power
Radar status
targ, selctThe status of the target selection.
Hydraulic status
hydr, pumpnThe status of hydraulic pump n.
hydr, qtynThe hydraulic fluid in pump n.
hydr, presnThe pressure of hydraulic pump n.
Electrical and solar power status (elec & solar status)
busn, ampBus n’s amperage.
busn, voltBus n’s voltage.
engin, in W
solar, out W
batt, w-hr
Cross, tie
Icing status 1
inlet, ice
prop, ice
pitot, ice
statc, ice
Icing status 2
aoa, ice
lwing, ice
rwing, ice
windo, ice
Warning status
warn, time
caut, time
warn, work
caut, work
gear, work
gear, warn
stall, warn
VRS, ratio
Flight plan legs (flite-plan legs)
leg, #
leg, type
leg, lat
leg, lon
Hardware options
pedal, nobrk
pedal, wibrk
yoke, PFC
pedal, PFC
throt, PFC
cecon, PFC
switc, PFC
btogg, PFC
Camera location
camra, lonThe camera’s longitudinal location.
camra, latThe camera’s latitudinal location.
camra, eleThe camera’s elevation.
camra, hdgThe camera’s heading.
camra, pitchThe camera’s pitch.
camra, rollThe camera’s roll.
camra, clouThe camera’s cloud cover.
Ground location
cntr, X
cntr, Y
cntr, Z
slope, X
slope, Z
Climb statistics (climb stats)
h-spd, kt
v-spd, fpm
mult, VxVVI
Cruise statistics (cruise stats)
ff, pph
ff, gph
speed, mph
eta, smpg
eta, nm/lb
range, sm
endur, hours
mult, VxMPG

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