Multiplayer protocol
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| Caution Developer information:
Some, and possibly most, of the details below are likely to be affected, or even deprecated, by the ongoing work on implementing and improving HLA support in FlightGear. For recent updates, please refer to HLA Timeline. |
The multiplayer protocol is the way FlightGear communicates between instances and the multiplayer servers.
| Caution Since FlightGear 2020.3 the option to select protocols other than 2017.2 have been removed from the GUI and only Version 2 (2017.2) of the property encoding is currently supported, older versions are obsolete and may be removed at some point FlightGear 2020.3. |
The multiplayer protocol uses XDR encoded messages that are sent via UDP. All messages are composed of XDR (eXternal Data Representation) encoded data as per RFC 1832.
XDR basically means that all data is in network byte order and aligned to the nearest multiple of 4 bytes. Strings are encoded in Pascal format (length followed by char(length)) and are not zero terminated. Floating point numbers (32 or 64 bit) must be encoded as per the IEEE standard.
For the record, strings are limited to 128 characters and packets are limited to 1200 bytes; these limits are hardcoded in fgfs and represent the commonly accepted transmission size of a UDP packet .[1]
Future Development
|
note that Stuarts HLA efforts might render the MP protocol obsolete sooner or later - I think that's finally on the horion. — Thorsten (Dec 13th, 2015). Military simulation (from Su-15 Screenshots).
(powered by Instant-Cquotes) |
|
2017.3 Changes
New property /sim/multiplay/transmit-only-generics, when this is set only the position header, all of the sim/multiplay/generic/ and instrumentation/transponder/ are transmitted over MP. This is intended to allow models to use an alternative encoding (such as the Emesary PropertyNotification) to transmit a well known (to the model) list of properties packed into the generic properties.
The maximum size of a string was also increased to 768 bytes (from 128).
2017.2 Changes
The 2017.2 protocol allows for much better packing of strings, new types that are transmitted in 4bytes by transmitting with short int (sometimes scaled) for the values (a lot of the properties that are transmitted will pack nicely into 16bits).
The 2017.2 protocol also allows for properties to be transmitted automatically as a different type and the encode/decode will take this into consideration.
To allow for compatibility with older clients the pad magic is used to force older clients to call verifyProperties, which will result in an invalid result because the first property transmitted is made to ensure that this routine fails on earlier clients; causing the properties part of the packet to be discarded, the basic motion properties remain compatible, so the older client will see just the model, not chat, not animations etc.
The property transmission definition for 2017.2 has been reworked to take advantage of the more efficient packing options available.
A reduction of around 30% is achieved on a basic packet; with the new additional short int generics more properties can be transmitted in the remaining space than was previously possible.
The property /sim/multiplay/protocol-version (1 or 2) controls the protocol in use; 1 is compatible, 2 is 2017.2
The property /sim/multiplay/visibility-range-nm will be sent in the packet header - to allow the client to request larger visibility ranges from fgms. This has not been implemented in the fgms code.
2017.2 debugging aids
With 2017.2 there are some properties (for the developer) that allow debug of the multiplayer.
Visibility range
/sim/multiplay/visibility-range-nm controls the visibility range. This requires connect to a multiplayer server running FGMS servers 0.13.1 or later (see http://mpmap01.flightgear.org/mpstatus/). Maximum (server defined value) of 2000nm.
This value is set to 100nm on startup and changes aren't persisted.
For models that wish to change this value; e.g. radar range, the recommendation is to only increase over 100nm when the Radar Range is also greater than 100nm.
This property is designed to be controlled by the model, not the user; so take care to use wisely; for a realistic radar simulation this should be set to the radar range; however also setting below 20nm is not generally advised as it is a hard limit and will prevent any communication or visibility of models outside of this range.
Loopback
set /sim/multiplay/debug-level to 1 (bit 0) and your aircraft will be locally looped back (within the protocol) - thus aiding the development of multiplayer animations and general multiplayer debug.
Multiplay debug-level
- /sim/multiplay/debug-level bit 0 : direct loopback (see above). Need to be connected to a multiplayer server, but no extra packets are sent as the loopback is within the MP code.
- /sim/multiplay/debug-level bit 1 : trace (to the console at Network, Info) the properties being sent in the outgoing packet
- /sim/multiplay/debug-level bit 2 : hexdump (to the console at Network, Info) outgoing packets
- /sim/multiplay/debug-level bit 3 : trace (to the console at Network, Info) contents of incoming packets. Can result in a lot of debug.
- /sim/multiplay/debug-level bit 4 : hexdump (to the console at Network, Info) incoming packets.
Outgoing packet size
Property /sim/multiplay/last-xmit-packet-len contains the size (in bytes) of the last transmitted packet.
Data types
| Warning if an aircraft defines all possible properties in the protocol, it tries to send 14988 bytes per packet, almost 12.5 times the allowed limit. Until the protocol is fixed to handle this it is the responsibility of the aircraft modeler to resolve Multiplayer packet truncated errors. [2] |
| Caution Prior to V2017.2 all bytes in the STRING field are sent as 4-byte ints (not in the header or the position message). So STR has length (LEN * 4) bytes and padding ((4 - LEN%4) * 4) bytes, if LEN%4 is not 0. |
When running with 2017.2 there is a Transmit As mapping to allow more efficient usage of the limited space in the packet. This mapping is defined in the property map.
The data is XDR encoded in two different methods, compatible or 2017.2. This only affects the properties, with the impact that clients prior to 2017.2 will only be able to receive properties using compatible encoding, which can result in missing animations and no receipt of chat messages.
Compatible encoding
Prior to 2017.2 the following types are available.
| Type | Size | Remarks |
|---|---|---|
| int | 4 bytes | Send unconditionally |
| float | 4 bytes | Send unconditionally |
| bool | 4 bytes | Send unconditionally |
| string | (LEN + STR + PAD) bytes |
LEN: 4 bytes, length of the decoded string |
2017.2 encoding
All properties are transmitted unconditionally in each frame at the rate specified. The size is the size of the encoding and the size of the index will be added to this so an int will take 6 bytes
| Type | Size | Remarks |
|---|---|---|
| int | 4 bytes | |
| short int | 2 bytes | |
| float | 4 bytes | |
| Short_float_norm | 2 bytes | -1 .. 1 encoded into a short int |
| Short_float_1 | 2 bytes | range -3276.7 .. 3276.7 float encoded into a short int (16 bit) |
| Short_float_2 | 2 bytes | range -327.67 .. 327.67 float encoded into a short int (16 bit) |
| Short_float_3 | 2 bytes | range -32.767 .. 32.767 float encoded into a short int (16 bit) |
| Short_float_4 | 2 bytes | range -3.2767 .. 3.2767 float encoded into a short int (16 bit) |
| bool | 4 bytes | Deprecated and retained for compatibility with the following properties
Generic bools are packed as 31 into 4 bytes |
| string | (ID:LEN) 4 bytes, LEN bytes follows |
ID: 2 bytes
LEN: 2 bytes, length of the string |
Also with 2017.2 the property ID for short int and strings is transmitted in 16bits.
Messages
Messages header
The header is always 32 bytes long and contains the following fields in exactly that order:
| Field | Size | Remarks | |
|---|---|---|---|
| Magic | 4 bytes | Always 0x46474653 ("FGFS") | |
| Version | 4 bytes | Protocol version, currently 0x00010001 (1.1) | |
| MsgId | 4 bytes | Defines what data is appended to the header. Can be 0x00000001 for chat messages (deprecated) or 0x00000007 for position data - all other values are outdated and ignored. | |
| MsgLen | 4 bytes | Length of the data.
| |
| RequestedRangeNm | 4 bytes | Requested visibility range in nm. The MP server can provide mp packets from any players within this range; but never over it. | |
| ReplyPort | 4 bytes | Deprecated and ignored | |
| Callsign | 8 bytes | Zero terminated array of characters representing the user callsign |
Chat messages
The data for chat messages is a zero terminated array of characters. The MsgLen field in the header represents its length. The maximum length is defined to be 256 bytes.
Position messages
The data of position message is more complicated and is composed of a two parts. The first part contain information needed to place an aircraft model in the right position and orientation. The second part contain property values used for animating the model, provided the user on the receiving end would have that aircraft installed.
First part
- Positions are in with respect to the Earth centered frame.
- Orientations are with respect to the X, Y and Z axis of the Earth centered frame, stored in the angle axis representation where the angle is coded into the axis length.
- Velocities are along the X, Y and Z directions of the Earth centered frame.
- Angular accelerations are in two parts of the three dimensional angular velocity vector with respect to the Earth centered frame measured in the Earth centered frame.
- Linear accelerations are in two parts of the three dimensional linear acceleration vector with respect to the Earth centered frame measured in the Earth centered frame.
The first part contain these fields in exactly that order:
| Field | Size | Remarks |
|---|---|---|
| ModelName | 96 bytes | Zero terminated array of characters representing the aircraft model (/sim/model/path) used by the user
|
| time | 8 bytes | Representing the time when this message was generated double |
| lag | 8 bytes | Time offset for network lag double |
| PosX | 8 bytes | XDR encoded double value, X-ccordinate of users position |
| PosY | 8 bytes | XDR encoded double value, Y-ccordinate of users position |
| PosZ | 8 bytes | XDR encoded double value, z-ccordinate of users position |
| OriX | 4 bytes | XDR encoded float value, X-orientation of the user |
| OriY | 4 bytes | XDR encoded float value, Y-orientation of the user |
| OriZ | 4 bytes | XDR encoded float value, Z-orientation of the user |
| VelX | 4 bytes | XDR encoded float value, velocity of the user in X direction |
| VelY | 4 bytes | XDR encoded float value, velocity of the user in Y direction |
| VelZ | 4 bytes | XDR encoded float value, velocity of the user in Z direction |
| AV1 | 4 bytes | XDR encoded float value, 1. part of the three dimensional angular velocity vector |
| AV2 | 4 bytes | XDR encoded float value, 2. part of the three dimensional angular velocity vector |
| AV3 | 4 bytes | XDR encoded float value, 3. part of the three dimensional angular velocity vector |
| LA1 | 4 bytes | XDR encoded float value, 1. part of the three dimensional linear accelaration vector |
| LA2 | 4 bytes | XDR encoded float value, 2. part of the three dimensional linear accelaration vector |
| LA3 | 4 bytes | XDR encoded float value, 3. part of the three dimensional linear accelaration vector |
| AA1 | 4 bytes | XDR encoded float value, 1. part of the three dimensional angular accelaration vector |
| AA2 | 4 bytes | XDR encoded float value, 2. part of the three dimensional angular accelaration vector |
| AA3 | 4 bytes | XDR encoded float value, 3. part of the three dimensional angular accelaration vector |
| pad | up to 8 bytes | For padding the data to a multiple of 8 bytes |
Properties transmitted over MP
The fields of the second part are property values encoded in the form ID|Value.
A subset of the following properties are transmitted in the order below. Properties marked as V1_1_2_PROP_ID will only be sent when the 2017.2 protocol (or later) is selected. Transmit As is also only relevant for 2017.2 or later.
Although the MP protocol can transmit many different packets mostly a T_PositionMsg identified by MsgId of POS_DATA_ID (7) in the header. Refer to flightgear/src/MultiPlayer/mpmessages.hxx (line 48) for the PROTO_VER that is in use, currently this is 0x00010001 which is 1.1
The T_PositionMsg contains the standard MsgHdr, with position and motion information next and then a set of properties. Within the protocol 1.1 there is a secondary version that applies to the way that the properties are encoded, and this secondary version is either 1 or 2 (2017.2)
Version 1 of the properties can be read by all versions of FlightGear; however version 2 properties can only be read by FlightGear 2017.2 (or later). Version 1 of the property encoding is not covered here as it is obsolete and deprecated.
Version 2 (2017.2) includes new ways of encoding and decoding properties which are designed to save space in the transmitted buffer.
- ID Property ID (v1)
- Property String (v1)
- Type Property Type (v1)
- TransmitAs (v2) - this causes the property to be transmitted on the wire using the specified format on the wire but decoded back into the original format (sometimes with data loss).
- Protocol Ident - the minimum version of the protocol that is required to transmit a property. Does not apply to incoming properties - as these will be decoded correctly when received
- encode_for_transmit - method that will convert from and to the packet for the value. This Allows specific conversion rules to be applied; such as conversion of a string to an integer for transmission.
- decode_received - decodes received data.
- NOTE: when using the encode/decode methods there should be both specified, however if the result of the encode is to transmit in a different property index the encode/decode will be on different elements in the property id list.
- You can see an example of the encode and decode methods with property ID 108 gear/launchbar/state which although it is a string in FlightGear it will be transmitted as a SHORT_INT based on the known values. When received the property 120 will act as an intermediary an set the decoded value into gear/launchbar/state as though it had been transmitted as a string.
Supported Transmission Types
| Encoding | Description | |
|---|---|---|
| TT_ASIS = 0 | transmit as defined in the property. This is the default | |
| TT_BOOL | NOT USED | |
| TT_INT | 32bit integer | |
| TT_FLOAT | 32bit floating point value | |
| TT_STRING | string (deprecated) | |
| TT_SHORTINT | 16bit integer (lower 16 bits of 32bit int) | |
| TT_SHORT_FLOAT_NORM | -1 .. 1 encoded into a short int (16 bit) | |
| TT_SHORT_FLOAT_1 | range -3276.7 .. 3276.7 float encoded into a short int (16 bit) | |
| TT_SHORT_FLOAT_2 | range -327.67 .. 327.67 float encoded into a short int (16 bit) | |
| TT_SHORT_FLOAT_3 | range -32.767 .. 32.767 float encoded into a short int (16 bit) | |
| TT_SHORT_FLOAT_4 | range -3.2767 .. 3.2767 float encoded into a short int (16 bit) | |
| TT_BOOLARRAY | 31 boolean values mapped to a 32bit int | |
| TT_CHAR | NOT USED | |
| TT_NOSEND | Do not send this property - probably the receive element for a custom encoded property |
Master property transmission list
The following table defines which properties can be transmitted with the position message, i.e. the normal MP use case (as of FG 2020.2).
| Note Only properties present in the property tree will be transmitted. |
| ID | Property | Type | Transmit As | Protocol Ident | |
|---|---|---|---|---|---|
| 10 | sim/multiplay/protocol-version | INT | TT_SHORTINT | V2_PROP_ID_PROTOCOL | |
| 100 | surface-positions/left-aileron-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 101 | surface-positions/right-aileron-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 102 | surface-positions/elevator-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 103 | surface-positions/rudder-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 104 | surface-positions/flap-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 105 | surface-positions/speedbrake-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 106 | gear/tailhook/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 107 | gear/launchbar/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 108 | gear/launchbar/state | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 109 | gear/launchbar/holdback-position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 110 | canopy/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 111 | surface-positions/wing-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 112 | surface-positions/wing-fold-pos-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 120 | gear/launchbar/state-value | INT | TT_NOSEND | V1_1_2_PROP_ID | |
| 200 | gear/gear[0]/compression-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 201 | gear/gear[0]/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 210 | gear/gear[1]/compression-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 211 | gear/gear[1]/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 220 | gear/gear[2]/compression-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 221 | gear/gear[2]/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 230 | gear/gear[3]/compression-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 231 | gear/gear[3]/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 240 | gear/gear[4]/compression-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 241 | gear/gear[4]/position-norm | FLOAT | TT_SHORT_FLOAT_NORM | V1_1_PROP_ID | |
| 300 | engines/engine[0]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 301 | engines/engine[0]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 302 | engines/engine[0]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 310 | engines/engine[1]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 311 | engines/engine[1]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 312 | engines/engine[1]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 320 | engines/engine[2]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 321 | engines/engine[2]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 322 | engines/engine[2]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 330 | engines/engine[3]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 331 | engines/engine[3]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 332 | engines/engine[3]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 340 | engines/engine[4]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 341 | engines/engine[4]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 342 | engines/engine[4]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 350 | engines/engine[5]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 351 | engines/engine[5]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 352 | engines/engine[5]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 360 | engines/engine[6]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 361 | engines/engine[6]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 362 | engines/engine[6]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 370 | engines/engine[7]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 371 | engines/engine[7]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 372 | engines/engine[7]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 380 | engines/engine[8]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 381 | engines/engine[8]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 382 | engines/engine[8]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 390 | engines/engine[9]/n1 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 391 | engines/engine[9]/n2 | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 392 | engines/engine[9]/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 800 | rotors/main/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 801 | rotors/tail/rpm | FLOAT | TT_SHORT_FLOAT_1 | V1_1_PROP_ID | |
| 810 | rotors/main/blade[0]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 811 | rotors/main/blade[1]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 812 | rotors/main/blade[2]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 813 | rotors/main/blade[3]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 820 | rotors/main/blade[0]/flap-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 821 | rotors/main/blade[1]/flap-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 822 | rotors/main/blade[2]/flap-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 823 | rotors/main/blade[3]/flap-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 830 | rotors/tail/blade[0]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 831 | rotors/tail/blade[1]/position-deg | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 900 | sim/hitches/aerotow/tow/length | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 901 | sim/hitches/aerotow/tow/elastic-constant | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 902 | sim/hitches/aerotow/tow/weight-per-m-kg-m | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 903 | sim/hitches/aerotow/tow/dist | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 904 | sim/hitches/aerotow/tow/connected-to-property-node | BOOL | TT_ASIS | V1_1_PROP_ID | |
| 905 | sim/hitches/aerotow/tow/connected-to-ai-or-mp-callsign | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 906 | sim/hitches/aerotow/tow/brake-force | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 907 | sim/hitches/aerotow/tow/end-force-x | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 908 | sim/hitches/aerotow/tow/end-force-y | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 909 | sim/hitches/aerotow/tow/end-force-z | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 930 | sim/hitches/aerotow/is-slave | BOOL | TT_ASIS | V1_1_PROP_ID | |
| 931 | sim/hitches/aerotow/speed-in-tow-direction | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 932 | sim/hitches/aerotow/open | BOOL | TT_ASIS | V1_1_PROP_ID | |
| 933 | sim/hitches/aerotow/local-pos-x | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 934 | sim/hitches/aerotow/local-pos-y | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 935 | sim/hitches/aerotow/local-pos-z | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 1001 | controls/flight/slats | FLOAT | TT_SHORT_FLOAT_4 | V1_1_PROP_ID | |
| 1002 | controls/flight/speedbrake | FLOAT | TT_SHORT_FLOAT_4 | V1_1_PROP_ID | |
| 1003 | controls/flight/spoilers | FLOAT | TT_SHORT_FLOAT_4 | V1_1_PROP_ID | |
| 1004 | controls/gear/gear-down | FLOAT | TT_SHORT_FLOAT_4 | V1_1_PROP_ID | |
| 1005 | controls/lighting/nav-lights | FLOAT | TT_SHORT_FLOAT_3 | V1_1_PROP_ID | |
| 1006 | controls/armament/station[0]/jettison-all | BOOL | TT_SHORTINT | V1_1_PROP_ID | |
| 1100 | sim/model/variant | INT | TT_ASIS | V1_1_PROP_ID | |
| 1101 | sim/model/livery/file | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 1200 | environment/wildfire/data | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 1201 | environment/contrail | INT | TT_SHORTINT | V1_1_PROP_ID | |
| 1300 | tanker | INT | TT_SHORTINT | V1_1_PROP_ID | |
| 1400 | scenery/events | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 1500 | instrumentation/transponder/transmitted-id | INT | TT_SHORTINT | V1_1_PROP_ID | |
| 1501 | instrumentation/transponder/altitude | INT | TT_ASIS | V1_1_PROP_ID | |
| 1502 | instrumentation/transponder/ident | BOOL | TT_SHORTINT | V1_1_PROP_ID | |
| 1503 | instrumentation/transponder/inputs/mode | INT | TT_SHORTINT | V1_1_PROP_ID | |
| 1504 | instrumentation/transponder/ground-bit | BOOL | TT_SHORTINT | V1_1_2_PROP_ID | |
| 1505 | instrumentation/transponder/airspeed-kt | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10001 | sim/multiplay/transmission-freq-hz | STRING | TT_NOSEND | V1_1_2_PROP_ID | |
| 10002 | sim/multiplay/chat | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10100 | sim/multiplay/generic/string[0] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10101 | sim/multiplay/generic/string[1] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10102 | sim/multiplay/generic/string[2] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10103 | sim/multiplay/generic/string[3] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10104 | sim/multiplay/generic/string[4] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10105 | sim/multiplay/generic/string[5] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10106 | sim/multiplay/generic/string[6] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10107 | sim/multiplay/generic/string[7] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10108 | sim/multiplay/generic/string[8] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10109 | sim/multiplay/generic/string[9] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10110 | sim/multiplay/generic/string[10] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10111 | sim/multiplay/generic/string[11] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10112 | sim/multiplay/generic/string[12] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10113 | sim/multiplay/generic/string[13] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10114 | sim/multiplay/generic/string[14] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10115 | sim/multiplay/generic/string[15] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10116 | sim/multiplay/generic/string[16] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10117 | sim/multiplay/generic/string[17] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10118 | sim/multiplay/generic/string[18] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10119 | sim/multiplay/generic/string[19] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 10200 | sim/multiplay/generic/float[0] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10201 | sim/multiplay/generic/float[1] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10202 | sim/multiplay/generic/float[2] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10203 | sim/multiplay/generic/float[3] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10204 | sim/multiplay/generic/float[4] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10205 | sim/multiplay/generic/float[5] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10206 | sim/multiplay/generic/float[6] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10207 | sim/multiplay/generic/float[7] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10208 | sim/multiplay/generic/float[8] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10209 | sim/multiplay/generic/float[9] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10210 | sim/multiplay/generic/float[10] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10211 | sim/multiplay/generic/float[11] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10212 | sim/multiplay/generic/float[12] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10213 | sim/multiplay/generic/float[13] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10214 | sim/multiplay/generic/float[14] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10215 | sim/multiplay/generic/float[15] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10216 | sim/multiplay/generic/float[16] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10217 | sim/multiplay/generic/float[17] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10218 | sim/multiplay/generic/float[18] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10219 | sim/multiplay/generic/float[19] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10220 | sim/multiplay/generic/float[20] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10221 | sim/multiplay/generic/float[21] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10222 | sim/multiplay/generic/float[22] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10223 | sim/multiplay/generic/float[23] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10224 | sim/multiplay/generic/float[24] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10225 | sim/multiplay/generic/float[25] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10226 | sim/multiplay/generic/float[26] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10227 | sim/multiplay/generic/float[27] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10228 | sim/multiplay/generic/float[28] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10229 | sim/multiplay/generic/float[29] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10230 | sim/multiplay/generic/float[30] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10231 | sim/multiplay/generic/float[31] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10232 | sim/multiplay/generic/float[32] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10233 | sim/multiplay/generic/float[33] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10234 | sim/multiplay/generic/float[34] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10235 | sim/multiplay/generic/float[35] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10236 | sim/multiplay/generic/float[36] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10237 | sim/multiplay/generic/float[37] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10238 | sim/multiplay/generic/float[38] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10239 | sim/multiplay/generic/float[39] | FLOAT | TT_ASIS | V1_1_PROP_ID | |
| 10300 | sim/multiplay/generic/int[0] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10301 | sim/multiplay/generic/int[1] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10302 | sim/multiplay/generic/int[2] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10303 | sim/multiplay/generic/int[3] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10304 | sim/multiplay/generic/int[4] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10305 | sim/multiplay/generic/int[5] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10306 | sim/multiplay/generic/int[6] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10307 | sim/multiplay/generic/int[7] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10308 | sim/multiplay/generic/int[8] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10309 | sim/multiplay/generic/int[9] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10310 | sim/multiplay/generic/int[10] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10311 | sim/multiplay/generic/int[11] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10312 | sim/multiplay/generic/int[12] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10313 | sim/multiplay/generic/int[13] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10314 | sim/multiplay/generic/int[14] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10315 | sim/multiplay/generic/int[15] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10316 | sim/multiplay/generic/int[16] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10317 | sim/multiplay/generic/int[17] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10318 | sim/multiplay/generic/int[18] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10319 | sim/multiplay/generic/int[19] | INT | TT_ASIS | V1_1_PROP_ID | |
| 10500 | sim/multiplay/generic/short[0] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10501 | sim/multiplay/generic/short[1] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10502 | sim/multiplay/generic/short[2] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10503 | sim/multiplay/generic/short[3] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10504 | sim/multiplay/generic/short[4] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10505 | sim/multiplay/generic/short[5] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10506 | sim/multiplay/generic/short[6] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10507 | sim/multiplay/generic/short[7] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10508 | sim/multiplay/generic/short[8] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10509 | sim/multiplay/generic/short[9] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10510 | sim/multiplay/generic/short[10] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10511 | sim/multiplay/generic/short[11] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10512 | sim/multiplay/generic/short[12] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10513 | sim/multiplay/generic/short[13] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10514 | sim/multiplay/generic/short[14] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10515 | sim/multiplay/generic/short[15] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10516 | sim/multiplay/generic/short[16] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10517 | sim/multiplay/generic/short[17] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10518 | sim/multiplay/generic/short[18] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10519 | sim/multiplay/generic/short[19] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10520 | sim/multiplay/generic/short[20] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10521 | sim/multiplay/generic/short[21] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10522 | sim/multiplay/generic/short[22] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10523 | sim/multiplay/generic/short[23] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10524 | sim/multiplay/generic/short[24] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10525 | sim/multiplay/generic/short[25] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10526 | sim/multiplay/generic/short[26] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10527 | sim/multiplay/generic/short[27] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10528 | sim/multiplay/generic/short[28] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10529 | sim/multiplay/generic/short[29] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10530 | sim/multiplay/generic/short[30] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10531 | sim/multiplay/generic/short[31] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10532 | sim/multiplay/generic/short[32] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10533 | sim/multiplay/generic/short[33] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10534 | sim/multiplay/generic/short[34] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10535 | sim/multiplay/generic/short[35] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10536 | sim/multiplay/generic/short[36] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10537 | sim/multiplay/generic/short[37] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10538 | sim/multiplay/generic/short[38] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10539 | sim/multiplay/generic/short[39] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10540 | sim/multiplay/generic/short[40] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10541 | sim/multiplay/generic/short[41] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10542 | sim/multiplay/generic/short[42] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10543 | sim/multiplay/generic/short[43] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10544 | sim/multiplay/generic/short[44] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10545 | sim/multiplay/generic/short[45] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10546 | sim/multiplay/generic/short[46] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10547 | sim/multiplay/generic/short[47] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10548 | sim/multiplay/generic/short[48] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10549 | sim/multiplay/generic/short[49] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10550 | sim/multiplay/generic/short[50] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10551 | sim/multiplay/generic/short[51] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10552 | sim/multiplay/generic/short[52] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10553 | sim/multiplay/generic/short[53] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10554 | sim/multiplay/generic/short[54] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10555 | sim/multiplay/generic/short[55] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10556 | sim/multiplay/generic/short[56] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10557 | sim/multiplay/generic/short[57] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10558 | sim/multiplay/generic/short[58] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10559 | sim/multiplay/generic/short[59] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10560 | sim/multiplay/generic/short[60] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10561 | sim/multiplay/generic/short[61] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10562 | sim/multiplay/generic/short[62] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10563 | sim/multiplay/generic/short[63] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10564 | sim/multiplay/generic/short[64] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10565 | sim/multiplay/generic/short[65] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10566 | sim/multiplay/generic/short[66] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10567 | sim/multiplay/generic/short[67] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10568 | sim/multiplay/generic/short[68] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10569 | sim/multiplay/generic/short[69] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10570 | sim/multiplay/generic/short[70] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10571 | sim/multiplay/generic/short[71] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10572 | sim/multiplay/generic/short[72] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10573 | sim/multiplay/generic/short[73] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10574 | sim/multiplay/generic/short[74] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10575 | sim/multiplay/generic/short[75] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10576 | sim/multiplay/generic/short[76] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10577 | sim/multiplay/generic/short[77] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10578 | sim/multiplay/generic/short[78] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 10579 | sim/multiplay/generic/short[79] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 11000 | sim/multiplay/generic/bool[0] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11001 | sim/multiplay/generic/bool[1] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11002 | sim/multiplay/generic/bool[2] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11003 | sim/multiplay/generic/bool[3] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11004 | sim/multiplay/generic/bool[4] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11005 | sim/multiplay/generic/bool[5] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11006 | sim/multiplay/generic/bool[6] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11007 | sim/multiplay/generic/bool[7] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11008 | sim/multiplay/generic/bool[8] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11009 | sim/multiplay/generic/bool[9] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11010 | sim/multiplay/generic/bool[10] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11011 | sim/multiplay/generic/bool[11] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11012 | sim/multiplay/generic/bool[12] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11013 | sim/multiplay/generic/bool[13] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11014 | sim/multiplay/generic/bool[14] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11015 | sim/multiplay/generic/bool[15] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11016 | sim/multiplay/generic/bool[16] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11017 | sim/multiplay/generic/bool[17] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11018 | sim/multiplay/generic/bool[18] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11019 | sim/multiplay/generic/bool[19] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11020 | sim/multiplay/generic/bool[20] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11021 | sim/multiplay/generic/bool[21] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11022 | sim/multiplay/generic/bool[22] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11023 | sim/multiplay/generic/bool[23] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11024 | sim/multiplay/generic/bool[24] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11025 | sim/multiplay/generic/bool[25] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11026 | sim/multiplay/generic/bool[26] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11027 | sim/multiplay/generic/bool[27] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11028 | sim/multiplay/generic/bool[28] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11029 | sim/multiplay/generic/bool[29] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11030 | sim/multiplay/generic/bool[30] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11040 | sim/multiplay/generic/bool[31] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11041 | sim/multiplay/generic/bool[32] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11042 | sim/multiplay/generic/bool[33] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11043 | sim/multiplay/generic/bool[34] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11044 | sim/multiplay/generic/bool[35] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11045 | sim/multiplay/generic/bool[36] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11046 | sim/multiplay/generic/bool[37] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11047 | sim/multiplay/generic/bool[38] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11048 | sim/multiplay/generic/bool[39] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11049 | sim/multiplay/generic/bool[40] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11050 | sim/multiplay/generic/bool[41] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11051 | sim/multiplay/generic/bool[91] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11052 | sim/multiplay/generic/bool[42] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11053 | sim/multiplay/generic/bool[43] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11054 | sim/multiplay/generic/bool[44] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11055 | sim/multiplay/generic/bool[45] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11056 | sim/multiplay/generic/bool[46] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11057 | sim/multiplay/generic/bool[47] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11058 | sim/multiplay/generic/bool[48] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11059 | sim/multiplay/generic/bool[49] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11060 | sim/multiplay/generic/bool[50] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11061 | sim/multiplay/generic/bool[51] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11062 | sim/multiplay/generic/bool[52] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11063 | sim/multiplay/generic/bool[53] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11064 | sim/multiplay/generic/bool[54] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11065 | sim/multiplay/generic/bool[55] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11066 | sim/multiplay/generic/bool[56] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11067 | sim/multiplay/generic/bool[57] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11068 | sim/multiplay/generic/bool[58] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11069 | sim/multiplay/generic/bool[59] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11070 | sim/multiplay/generic/bool[60] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11080 | sim/multiplay/generic/bool[61] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11081 | sim/multiplay/generic/bool[62] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11082 | sim/multiplay/generic/bool[63] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11083 | sim/multiplay/generic/bool[64] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11084 | sim/multiplay/generic/bool[65] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11085 | sim/multiplay/generic/bool[66] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11086 | sim/multiplay/generic/bool[67] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11087 | sim/multiplay/generic/bool[68] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11088 | sim/multiplay/generic/bool[69] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11089 | sim/multiplay/generic/bool[70] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11090 | sim/multiplay/generic/bool[71] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11091 | sim/multiplay/generic/bool[92] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11092 | sim/multiplay/generic/bool[72] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11093 | sim/multiplay/generic/bool[73] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11094 | sim/multiplay/generic/bool[74] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11095 | sim/multiplay/generic/bool[75] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11096 | sim/multiplay/generic/bool[76] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11097 | sim/multiplay/generic/bool[77] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11098 | sim/multiplay/generic/bool[78] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11099 | sim/multiplay/generic/bool[79] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11100 | sim/multiplay/generic/bool[80] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11101 | sim/multiplay/generic/bool[81] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11102 | sim/multiplay/generic/bool[82] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11103 | sim/multiplay/generic/bool[83] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11104 | sim/multiplay/generic/bool[84] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11105 | sim/multiplay/generic/bool[85] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11106 | sim/multiplay/generic/bool[86] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11107 | sim/multiplay/generic/bool[87] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11108 | sim/multiplay/generic/bool[88] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11109 | sim/multiplay/generic/bool[89] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11110 | sim/multiplay/generic/bool[90] | BOOL | TT_BOOLARRAY | V1_1_2_PROP_ID | |
| 11990 | sim/multiplay/mp-clock-mode | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12000 | sim/multiplay/emesary/bridge[0] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12001 | sim/multiplay/emesary/bridge[1] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12002 | sim/multiplay/emesary/bridge[2] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12003 | sim/multiplay/emesary/bridge[3] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12004 | sim/multiplay/emesary/bridge[4] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12005 | sim/multiplay/emesary/bridge[5] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12006 | sim/multiplay/emesary/bridge[6] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12007 | sim/multiplay/emesary/bridge[7] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12008 | sim/multiplay/emesary/bridge[8] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12009 | sim/multiplay/emesary/bridge[9] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12010 | sim/multiplay/emesary/bridge[10] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12011 | sim/multiplay/emesary/bridge[11] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12012 | sim/multiplay/emesary/bridge[12] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12013 | sim/multiplay/emesary/bridge[13] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12014 | sim/multiplay/emesary/bridge[14] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12015 | sim/multiplay/emesary/bridge[15] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12016 | sim/multiplay/emesary/bridge[16] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12017 | sim/multiplay/emesary/bridge[17] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12018 | sim/multiplay/emesary/bridge[18] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12019 | sim/multiplay/emesary/bridge[19] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12020 | sim/multiplay/emesary/bridge[20] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12021 | sim/multiplay/emesary/bridge[21] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12022 | sim/multiplay/emesary/bridge[22] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12023 | sim/multiplay/emesary/bridge[23] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12024 | sim/multiplay/emesary/bridge[24] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12025 | sim/multiplay/emesary/bridge[25] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12026 | sim/multiplay/emesary/bridge[26] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12027 | sim/multiplay/emesary/bridge[27] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12028 | sim/multiplay/emesary/bridge[28] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12029 | sim/multiplay/emesary/bridge[29] | STRING | TT_ASIS | V1_1_2_PROP_ID | |
| 12200 | sim/multiplay/emesary/bridge-type[0] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12201 | sim/multiplay/emesary/bridge-type[1] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12202 | sim/multiplay/emesary/bridge-type[2] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12203 | sim/multiplay/emesary/bridge-type[3] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12204 | sim/multiplay/emesary/bridge-type[4] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12205 | sim/multiplay/emesary/bridge-type[5] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12206 | sim/multiplay/emesary/bridge-type[6] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12207 | sim/multiplay/emesary/bridge-type[7] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12208 | sim/multiplay/emesary/bridge-type[8] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12209 | sim/multiplay/emesary/bridge-type[9] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12210 | sim/multiplay/emesary/bridge-type[10] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12211 | sim/multiplay/emesary/bridge-type[11] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12212 | sim/multiplay/emesary/bridge-type[12] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12213 | sim/multiplay/emesary/bridge-type[13] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12214 | sim/multiplay/emesary/bridge-type[14] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12215 | sim/multiplay/emesary/bridge-type[15] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12216 | sim/multiplay/emesary/bridge-type[16] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12217 | sim/multiplay/emesary/bridge-type[17] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12218 | sim/multiplay/emesary/bridge-type[18] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12219 | sim/multiplay/emesary/bridge-type[19] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12220 | sim/multiplay/emesary/bridge-type[20] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12221 | sim/multiplay/emesary/bridge-type[21] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12222 | sim/multiplay/emesary/bridge-type[22] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12223 | sim/multiplay/emesary/bridge-type[23] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12224 | sim/multiplay/emesary/bridge-type[24] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12225 | sim/multiplay/emesary/bridge-type[25] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12226 | sim/multiplay/emesary/bridge-type[26] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12227 | sim/multiplay/emesary/bridge-type[27] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12228 | sim/multiplay/emesary/bridge-type[28] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 12229 | sim/multiplay/emesary/bridge-type[29] | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 13000 | sim/model/fallback-model-index | INT | TT_SHORTINT | V1_1_2_PROP_ID | |
| 13001 | sim/multiplay/comm-transmit-frequency-hz | INT | TT_INT | V1_1_2_PROP_ID | |
| 13002 | sim/multiplay/comm-transmit-power-norm | INT | TT_SHORT_FLOAT_NORM | V1_1_2_PROP_ID |
| Note This table is is current for FlightGear 2020.3; but may have been changed. Refer to flightgear/src/MultiPlayer/multiplaymgr.cxx (line 129). |
| Note Properties related to the Emesary MP Bridge are separated to allow possible future improvements to the MP code to have better handling and therefore these string properties should not be used for anything else. The emesary/bridge-type is not currently used - however in the future it will be to identify a specific type of bridge and/or notification that are being used from a predefined set of bridge-types (not yet implemented). |
Related content
Wiki articles
- Aircraft properties reference
- Howto:Multiplayer
- Howto:Record, analyze and replay multiplayer flights with network tools
- Howto:Transmit properties over MP
- Howto:Using mp broadcast.nas
- Real Time manual
Forum topics
Source code
XDR handling
Message types
Multiplayer system
External links
- External Data Representation
(XDR) - R. Srinivasan (August 1995). RFC 1832 – XDR: External Data Representation Standard. Published by Internet Engineering Task Force (IETF).
- ↑ Ludovic Brenta (May 3rd, 2016). Re: [Flightgear-devel] dual-control-tools and the limit on packet size .
- ↑ Ludovic Brenta (Oct 21st, 2016). Re: [Flightgear-devel] C172 MP alert on console .