PlaneCommandplanecommand logo Voice control for X-Plane

What can I say?

PlaneCommand understands dozens of ways to say each command; below are just some examples to try.

FREE features are available to everyone
PRO features are available in the paid pro version


Put down the flaps
Flaps down
Lower the flaps


Put the flaps all the way down
Bring the flaps all the way up
Raise the flaps a notch


Set flaps 2
Go to flaps 3
Extend the flaps all the way

Landing gearFREE

Put down the gear
Please raise the landing gear
Gear down, please

Landing gearFREE

Put down the gear
Please raise the landing gear
Gear down, please


Put the transponder on standby
Set the transponder to 4 2 5 5
Turn on the transponder

Radios (communication)FREE

Please tune COM1 to 125.3
Flip COM1
Set COM2 to 124.3


Beacon lights on
Taxi lights off
Strobe lights on


Set the parking brake
Release the brakes
Disengage the brakes

Radios (navigation)PRO

Please tune NAV1 to one two five point three
Set NAV1 to one oh four point 4
Set NAV2 to one one one point niner


Enable autopilot
Turn off autopilot
Disconnect the autopilot
Engage autothrottle

Flight directorPRO

Disable flight director
Set flight director to auto
Disengage flight director

Basic Autopilot modesPRO

Turn heading hold mode on
Turn off altitude hold
Enable flight change mode

Basic Autopilot modesPRO

Turn speed hold mode on
Turn off flight level change mode
Speed intervention on please (x737 only)

Autopilot navigation modesPRO

Turn on LNAV mode
Turn off HNAV mode
Turn on horizontal navigation mode

Autopilot ILS modesPRO

Turn approach hold on
Localizer hold on
Enable approach hold

Navigation (horizontal) PRO

Please set heading to 2 3 4 degrees
Set heading two hundred thirty four
Set the course bug to one one five


Arm the speed brakes
Spoilers down
Disengage speed brakes please

Altimeter PRO

Set altimeter two niner niner two
Put three zero five one on the barometer
Put standard pressure on the altimeter

Navigation (vertical) PRO

Set altitude to flight level two three zero
Set altitude to twelve thousand five hundred
Set the altitude bug to fifteen thousand feet

Speed bug PRO

Set speed to mach 0 point 8 2
Set the speed bug to three hundred knots
Set the two three zero knots

Engine start/stopPRO

Start engine number 3
Kill engine number 2
Shut down engine number 1

APU start/stopPRO

Start the APU
Stop the APU
Shut down the APU

APU generatorPRO

Turn the APU off
Shut down the APU generator
Enable the APU generator

Some other switchesPRO

Smoking lights on
Seatbelt sign off
Turn on the pitot heat

More details

Autopilot modes

The naming for autopilot modes seems to vary from manufacturer to manufacturer. I've tried to accept every common wording for the modes listed below. I'm not a pilot, so I may have made a few choices that don't make sense. If you see something that looks wrong to you, send me an email!

  • Altitude hold mode: altitude hold
  • Horizontal navigation mode: HNAV, LNAV, lateral navigation, horizontal navigation, localizer hold, VOR hold
  • Flight level change: level change, flight level change (in many aircraft, this is the same as speed hold mode)
  • Speed hold: Speed hold (in many aircraft, this is the same as level change mode)
  • Speed intervention mode: Speed intervetion (only available on x737)
  • Approach hold: Approach hold
  • Heading hold: Heading hold, heading select

A word about numbers

Pilots have a particularly way of communicating numbers to ensure that they are accurately heard- for instance, to say 12,000ft, you might say "one two thousand feet" instead of "twelve thousand feet", or "set heading three four zero degrees" instead of "three hundred and forty". Since version two, we support both of these ways of describing numbers.

There are many grammatically incorrect or informal ways to say numbers that are commonly used. "one hundred and five" might also be "one hundred five"; PlaneCommand accepts both ways. After hours spent testing various combinations of "two seven eight degrees" versus "two seventy eight degrees" versus "two hundred seventy eight degrees" versus "two hundred and seventy eight degrees", I think I've come up with a very accurate system that accepts every way of saying things that is in common use, with one exception. Due to an oversight, describing tens of hundreds (e.g. "seventy-five hundred") isn't supported now, but I plan to put this in a later version.

© 2017 Lee C Baker