Saturday, June 5, 2021

SU-31 For Microsoft Flight Simulator Beta Test



In general, Beta test is open to testers of all different skill levels and expertise - however, due to the nature of this particular aircraft, we are particularly interested in feedback coming from experts or pilots of the SU-26/29/31 family.

In order to apply for the Beta Test, please drop an email to with the following information:

- System specification (no need of details or long explainations: just specify your CPU, Clock speed, RAM, GPU and dedicated video RAM)

- Real world flight experience (if any) - please keep it short!

- Simulation experience - please keep it short!

- Any special tie to the SU-31 or similar aircrafts or any reason why you really want to test this plane

Important! Subject of the email must be "SU-31 MSFS Beta Test Application".

Please do not apply unless you have 2-3 hours to dedicate to test this aircraft!

Testing this aircraft is NOT a paid position in any way...if you do it, you do it only for the fun of it!

...and, due to the large number of applications we typically receive, we cannot grant a reply to everybody. If you do not receive a reply in a week or so, please assume you have not been admitted to the Beta - apologies in advance! 


This is a medium-low complexity add-on which is meant to depict the Sukhoi Su-31 aerobatic plane in an accessible way. The key points of the package are as follows:

- An accessible flight model on par or better than the default aerobatic models

- Highly detailed external and internal model

- Flight model and systems simulation is based on default MSFS functionalities (no external code). Within the limits of MSFS, we'd like to try and replicate the peculiar features of this aircraft and differentiate it from the stock planes.

- Simple sound package 

The intended usage is free flight and basic aerobatics.


Add-ons for Microsoft Flight Simulator are distributed as packages. Packages shall be placed in the "Community" folder. You will need to restart MSFS if the simulator was running when you have moved the files.


The preferred way to report bugs is to add a comment to this post, specifying what is the experienced malfunction and when it happens. Pics are welcome.

PLEASE do not rush in reporting bugs - it is not a race - take your time and verify if it is a real problem and, if you think it is, try to understand when it happens exactly.

Alternatively, an email is good too. Comments are preferred so that other users can see them.

It is not a race, so take your time. The simulation is quite complex, so it may take some time to get acquainted with the plane… I'd suggest you log at least a couple of hours before submitting any feedback.

Also, PLEASE, before posting a bug make sure it is not already in the list below.


Red - Higher priority: a severe bug that may hamper the usage of the aircraft

Yellow - Lower priority: definitely a defect, but not a high priority to solve it

Green - Problem solved, o mitigated to the level that it is acceptable.Dark Green - Problem solved or mitigated before the Beta 1 release.

Blue - Comment, nice-to-have features or suggestions


Current tester version NOT AVAILABLE

Current internal build ALPHA BUILD

Current metrics:

Red items: 1

Yellow items: 17

Green items: 40

Blue items: 0  


Progress toward release 66% :-(

Last changed by Dino on 07/07/2021


SU31EXT001 - Blurred prop texture do not match the prop color
SU31EXT002 - Misplaced Handle in 3D model - FIXED 07/06

SU31EXT003 - External model details cleanup needed - DONE 23/06
SU31EXT004 - Texture seams mismatch in multiple areas
SU31EXT005 - Missing tailwheeĆ² steer animation - FIXED 07/07 BETA 2
SU31EXT006 - Engine gills not painted
SU31EXT007 - Tail actuation wire not animated - FIXED 07/07 BETA 2
SU31EXT008 - Various openings in the engine section - FIXED 08/07 BETA 2
SU31EXT009 - Fuselage normal map considered excessive - REDUCED NORMAL MAP EFFECTS BY 80% - BETA 2


SU31VC001 - Missing LIGHT TEST caption - FIXED 24/06
SU31VC002 - Warning lights not working - FIXED 26/06
SU31VC003 - Drag mouse areas not implemented - FIXED 25/06
SU31VC004 - 3-point engine instruments missing colored bands - FIXED 07/06
SU31VC005 - 3-point engine instruments reading to be calibrated 
- FIXED 07/06
SU31VC006 - Starter not animated and inop - FIXED 05/07
SU31VC007 - Fuel shutoff not animated and inop - FIXED 24/06
SU31VC008 - Magnetos and keys not animated and inop, also incorrect key caption and AO.
SU31VC009 - Cylinder Temperature dial not working - FIXED 24/06
SU31VC010 - Chronograph not working - FIXED 25/06
SU31VC011 - Flight Time clock not working - FIXED 25/06
SU31VC012 - Wing Tank dial not working 
- FIXED 07/06
SU31VC013 - AMP/Voltmeter geometry incorrect, and instument not working - FIXED 07/06
SU31VC014 - Tachometer should indicate prop RPM instead of engine PRM - FIXED 25/06

SU31VC015 - Replace Glass material in VC - FIXED 25/06

SU31VC016 - Check rain effect in VC - CHECKED OK 26/06

SU31VC017 - Gmeter reset function missing - FIXED 25/06

SU31VC018 - Pitot Switch not working - FIXED 25/06

SU31VC019 - Tailwheel Lock INOP - FIXED 26/06

SU31VC020 - Trim lever not working anymore? - FIXED 25/06

SU31VC021 - Add canopy icing effect
SU31VC022 - Increase readability of altimeter and fuel quantity needles - FIXED 25/06

SU31VC023 - Cap spinner holes - FIXED 26/06 
SU31VC024 - Fix normal map of some dials
SU31VC025 - Missing Environment Occluder model - ADDED 26/06
SU31VC026 - Missing VR Collision Mesh - ADDED 26/06
SU31VC027 - Fuel Selector L/R Mouse Area not working  - FIXED 25/07

SU31VC028 - Altimeter "thousand" needle missing - FIXED 06/07 (Beta 2)
SU31VC030 - Engine Primer lever not labelled and not working - FIXED 07/07 (Beta 2)
SU31VC031 - Request to have easier radio tuning
SU31VC032 - Throttle and Pitch lever are reversed - FIXED 07/07 (Beta 2)
SU31VC033 - Voltmeter needle not working
SU31VC034 - Tailwheel help text missing - FIXED 07/07 (Beta 2)
SU31VC035 - Screws on top of VC misplaced if user moves out of the cockpit.


SU31FM001 - Maximum speed not matched - FIXED 25/07
SU31FM002 - Contact points to be revised - FIXED 25/06
SU31FM003 - Parking brake implemented but no control in the cockpit - NOTE: the real aircraft does not have a parking brake. The function is enabled in the Beta as it is intended to emulate the wheelchocks, which, in turn, are not present in the Beta model.
SU31FM004 - COG out of limits (need to rework data)
SU31FM005 - Ground steering too sensitive? Seems OK for other users...TBC
SU31FM006 - Control surface  - FIXED 07/07 BETA 2
SU31FM007 - Incorrect load limits 
 - FIXED 07/07 BETA 2

SU31FM008 - Incorrect fuel tank configuration and quantity - FIXED quantity, configuration left to L / R to match with selector. BETA 2


SU31OT001 - Check List is missing - added basic checklist - FIXED 24/06
SU31OT002 - Flight Manual is missing
SU31OT003 - Sound package is missing
SU31OT004 - Missing Previews - All previews created - FIXED 07/06
SU31OT005 - Build marketplace data
SU31OT006 - Need to replace view GUIDs to avoid potential issues
SU31OT007 - "HUD" color range mismatch
SU31OT008 - Request to fix aircraft tail numbers - FIXED 07/07 BETA 2