Discord 
I have recently written a simple tool to record and replay my flight and would like to share it with the community.
And thanks IamSean for allowing me to include his video as a showcase of the tool's capability and the awesome graphic fidelity of MSFS.
Instructions
Extract and run FlightRecorder.Client.exe.
Features
- Record and replay with your aircraft or an AI aircraft in the sim
- Change replaying speed
- NOTE: when speeding up, your computer might not be able to load scenery fast enough and that will negatively affect frame rate.
- Save recording into a file to replay later or on another computer
- Export the recorded data into CSV for further analysis
- Quickly jump to any time in your recording (you have to Pause Replay first)
Notes: The tool records this list of variables from SimConnect Structs.cs for each sim frame. Some of them are only for analysis and display and don’t affect replay.
Incompatibiity
- FBW A32NX
- The 32NX starts to replace existing code that works with SimConnect with new code that ignores SimConnect. This means the aircraft will ignore the replay data Flight Recorder send to the sim. You will see that certain variables get replayed as in other aircraft, and the rest don't.
- Workaround (suggested by Abriael): since the recording still has correct data, you can replay it on stable/dev variant of the 32NX, or even the default A320.
- Default A320 and A23NX
- Aileron reacts wrongly to simvar `AILERON POSITION` when aircraft is in the air.
- I have reported this in ZenDesk #95574. I'll wait for Sim Update 4 before working on a workaround.
Other Limitations and Notes
- When starting a replay, your aircraft might be teleported to a far away location which doesn't have loaded terrain. This means the ground can jump up/down really quickly and you might get a crash (not CTD) due to damaged landing gear. Disable crash detection might be a good idea if you frequently replay your flight.
- I don’t know a reliable way to tell if an engine is running or not, so this tool does not auto-start the engine (because it doesn’t know when). Hence, you should start recording/replaying when engine is already running (or the aircraft will move without a running engine) and stop recording before turning off the engine (not really a problem, but the tool might not shut the engine down for you). Not doing that won't prevent you from replaying or using any features, but replay can look like your aircraft is powered by magic ;).
- Replay looks weird when turning on the ground. I’m not so sure what is happening there yet.
- To prevent fighting with MSFS own calculation, the tool sends freeze command when you start replay and unfreeze when you stop replay.
This means replaying might conflict with other tools leverating the same freeze feature (e.g. YourControl when you are not in control, other replay tools). - AI aircraft jitters back and forth during replay, especially at high speed. I'm still trying to figure out the reason.
Reporting Issue
If you have any issue with the tool, please report it in our GitHub page with information for troubleshooting such as screenshots, logs and profile exports.
https://github.com/nguyenquyhy/Flight-Recorder/issues
You can also join my Discord server for further discussion https://discord.gg/azqQrWWEbV.
Other useful links
Source Code: https://github.com/nguyenquyhy/Flight-Recorder
Releases: https://github.com/nguyenquyhy/Flight-Recorder/releases
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matureboi
Can't use this mod anymore. Whenever i open it, it shows cannot initiailize sim connect. Please Help
Gsonz
Is there a way to make this tool compatible to the Aerosoft CRJ? The replay of flaps, engine thrust and landing gear currently doesn't work on this plane. Or doesn't the CRJ support simconnect like the A32NX?
nguyenquyhy 20 hour(s) ago
Yes the CRJ would have the same issue with the 32NX. Both added their own throttle mapping, so they ignore whatever sent to SimConnect. Same issue with flap and gear due to custom hydraulic and electrical systems.
There is a way to make the tool compatible to CRJ and 32NX, which is to send axis change event instead of throttle position (if they still respect SimConnect events), but I think that might create issues with different mapping/calibration, making the recording very unstable. It opens another can of worms that I don't really want to get into at the moment, considering so many other features I want to add, and that the built-in replay system is coming and everything might change completely.
Gsonz 4 hour(s) ago
Alright, thank you very much for the detailed answer! Happy flying 😊
Pilotakaa
Love your mod. But from today on it creates CTD. When I push replay the sim freezes. Had an old version so tried your most recent version. Same issue, I was able to have a replay from a saved and then loaded flight; till I paused the replay and uses the slider to look further forward. Then again a total freeze / CTD. Is ther something wrond on my side or is the WU6 the source of this issue?
nguyenquyhy 4 day(s) ago
Yah I think there is some problem with loading scenery, which should happen when you move the aircraft with slider. I think the software might conflict with some scenery optimization because you move the aircraft too fast.
Hopefully the hotfix tomorrow will help. Otherwise I'll try to throttle the move rate when you use the slider.
Pilotakaa 4 day(s) ago
I had the graphics up to the max, included the terrain lod on 4. in the cfg.
I changed the lod to the regular max (2.) and lowered the graphics.
That solves the issue. Before WU6 I did not have any issue with the max out graphics.....so the issue was possibly raisen by more / different issues......
laszlobarki
Just downloaded it - A QUESTION PLEASE, refering INSTALLATION: Do I have to put the program simply into the COMMUNITY and that`s it?
Pilotakaa 5 day(s) ago
no, there is an .exe in the folder; like a stand alone program
nguyenquyhy 4 day(s) ago
Yah, you don't need to (and shouldn't) put it in the community folder. Just extract the folder and run the exe.
francoisflight
Ty for your flight recorder, work fine .
IckeBins
Me again, is there a way to record the RPM? In Replays always the RPM turns brutally high. Best Regards
Pops738
is there a way that the recording keeps the other planes? player I have a doubt but could it be? and the objects or effects (for NéoFly missions for example?) great mod anyway i love this !
MI7A
how could I replay my recorded tape after saving it ?
Daddel
Crash to ground, when starting the replay. I use the FBW A32NX plane.
nguyenquyhy 15 day(s) ago
Yes I mentioned this in the notes in the description. It is advised to turn off crash detection for replay. The sim doesn't have a replay mode, so it applies all kind of unnecessary crash detection there.
For example, if the aircraft is moved to the first position, sometimes the sim will think the aircraft moves too fast and trigger stress crash. Other example is that if you jump a large distance, the terrain loads gradually so a low resolution terrain can clip your aircraft creating another crash. There is nothing the tool can do to prevent that.
aceprodigious
the flight replay recording software was having issues. I took off while recording paused replay went to start, played it and when editing, realized that the engine sound was stuck at the full throttle. And when I landed, I turned off the engines while recording the replay at the end while parking to gate, the similar situation. There was no engine sound, landing gears were not visible, and main door was open. They really need to fix this!
nguyenquyhy 16 day(s) ago
Are you also using the Salty 747?
Also, the tool doesn't record/replay all the switches on the aircraft, so it will not turn on/off your engine. As you can see in the description, it is recommended to start/stop the record/replay when the engine is running.
aceprodigious 15 day(s) ago
Got It, Thanks
boeing777
Please add auto record feature
nguyenquyhy 18 day(s) ago
It would be great if you can go to the GitHub Issue link in description and give us more details on the requested feature 😊.
boeing777 17 day(s) ago
i saw it is on the list "Record the past 120s" nice
leftclick2win
good addon and very easy to use, but when replaying It lags alot.
nguyenquyhy 18 day(s) ago
One thing that might help is to make sure MSFS gets focus. If I clicked on Flight Recorder during replay, MSFS looks very laggy, but it is smooth if I switch back to MSFS.
There is also an issue with having Flight Recorder on a G-SYNC/FreeSync monitor. I still don't know why that happens, but you might also try to move Flight Recorder/MSFS to different screen.
It's quite difficult for me to fix this as I cannot reproduce the lag in my PCs, so any additional information that you think are related would help a lot.
leftclick2win 14 day(s) ago
I have flight recorded on my second monitor, i have not noticed the lag stopping or reducing when changing application either.
chiaroscuro
Very useful! Precisely what I was searching for. Thank you very much!
SYDBARRETTXBOX
How do I actually view the replay?
Edit: Nevermind, figured it out. Load up a flight with the same plane, load the replay in the recorder app, and press replay. The app somehow hijacks the game and asserts positions and orientations onto your plane model. Cool! Can use the horizontal scroll bar to load up a certain time in the flight. Would be good to have this info in a readme or something.
nguyenquyhy 20 day(s) ago
I'm still trying to build up a nice place for guides and documentation, but maintaining and adding new features on 4 mods take more of my free time than I have anticipated 😉 .
Discovery_a380
Hello, I have two questions, the mod works for the A320NX? And the second, what is the A23NX that it says in the description?
nguyenquyhy 23 day(s) ago
the A32NX is the name of the A320 from FBW. I don't know if the mod works for the A320. It worked before, but FBW team decided to drop SimConnect compatibility when building new custom systems. It might work now, it might not. If it happens to work now, it might stop working in the future.
Discovery_a380 23 day(s) ago
Yes, I meant that in the description it says A23NX and I don't know what that is. I'll try it to see if it works.
Discovery_a380 23 day(s) ago
works with a320NX
nguyenquyhy 23 day(s) ago
Great!
Nick2E
Hi! I was just messing with flight control replay because the A32nx doesn't work too well with flight recorder (which is too bad because I like it better than FCR) but I think I know why FCR works with the A32nx. It seems that the tool uses simconnect to initially place the aircraft and control the throttles etc. but the flight control inputs are replayed via the tool as actual inputs for the sim. Maybe you already knew this but i thought i'd provide it as constructive feedback 😊
nguyenquyhy 24 day(s) ago
I didn't, so thanks for the information . Just curious, what happen if you record, and then change the throttle mapping in the tablet in the 32NX?
RedJet
Love it,
Can you record two planes flying in formation ? (for my airshow)
AirBerlin145
Super !!! Can you manage to program the tool like this one? link: https://www.aerointernational.de/simulation-nachrichten/fs-recorder-mehr-als-nur-aufnehmen.html
nguyenquyhy 26 day(s) ago
Is there any specific features you are looking for from FS Recorder?
AirBerlin145 26 day(s) ago
Forget it xD
Except that the lights and the AI traffic are not included. =)
nguyenquyhy 25 day(s) ago
I do try to include the lights too (you can try it on the C152), but not all lights expose the data via SimConnect.
op2388 21 day(s) ago
not sure if this has already been implemented but can the recorder perform the engine startup yet or does it need the recording to start with engines on already?
nguyenquyhy 20 day(s) ago
It can't do engine start up at the moment, and will probably stay that way until I stumble upon a way to do so that works well with Seeking feature.
leo.grflo
I think it needs an update. Cant see the REV. after landing and the engine sound is the same the whole recording.
nguyenquyhy 26 day(s) ago
During replay, the tool sends the data such as thrust level to the sim. However, it is up to the aircraft developer to make the aircraft accept those data or not. FBW 32NX for example does not work with data send from external tools, and there is nothing I can do about that.
IckeBins
Top Toolkit! Always online on my Sys. So i can take Co-Pilot Seat and watch my own Flight absolutly relaxed or show it the community on https://youtu.be/hq5cT0rt4Ro
nguyenquyhy 26 day(s) ago
Awesome landing!
IckeBins 22 day(s) ago
THX!