Sandy R Posted December 5, 2022 Report Posted December 5, 2022 I have a Spitfire cockpit with authentic style control inputs. A real Spitfire does not have toe brakes but has a single lever on the control column for the brakes. A pneumatic valve configuration operated through the Rudder control allows this single lever to actuate the left and right wheel brakes independently/differentially. For those with a single brake lever like mine, the following LUA script simulated this facility in the MSFS spitfires by mixing the analog Rudder input with another single analog Brake input to provide standard MSFS Toe Brake outputs. I have successfully tested following LUA file originally written for me by John Dowson with the Flying Iron Mk IX and the Airplane Heaven Mk1a Spitfire models for MSFS. The file should be placed in the FSUIPC7 folder and the lines: [Auto] 1=Lua spitfireBrake added to the end of the FSUIPC7.ini file or add 1=Lua spitfireBrake in the [Auto.xxx] section (where xxx is the name of your spitfire profile). You also then need to assign both your rudder and brake lever axis in FSUIPC7 using Send to FSUIPC Offset with Offset Dword Set. The script uses offset 0xA000 for the rudder axis and 0xA004 for the brake lever axis - use these or update the script to the ones that you use. spitfireBrake.lua 1
Darth JBell Posted April 17, 2024 Report Posted April 17, 2024 Thanks, Sandy! I’ll take a look although I’m running PREPAR3D w/FSUIPC version 6. The Behr Studio/Sim Market folks say the Chang doesn’t work w/MSFS 2020. 😢
John Dowson Posted April 17, 2024 Report Posted April 17, 2024 52 minutes ago, Darth JBell said: I’ll take a look although I’m running PREPAR3D w/FSUIPC version 6. The Behr Studio/Sim Market folks say the Chang doesn’t work w/MSFS 2020. This post is for the Spitfire brake. I referenced it for you as you need to do something similar for the CJ-6 Nanchang. I will help you with this in the thread where you asked. Once this is done, you can create a User Contribution similar to this to explain to others how to do this in the CJ-6.
Darth JBell Posted April 17, 2024 Report Posted April 17, 2024 8 minutes ago, John Dowson said: This post is for the Spitfire brake. I referenced it for you as you need to do something similar for the CJ-6 Nanchang. I will help you with this in the thread where you asked. Once this is done, you can create a User Contribution similar to this to explain to others how to do this in the CJ-6. Sounds good, Sir!
Hazzer111 Posted 21 hours ago Report Posted 21 hours ago (edited) Hi John, As per my post on the last thread, yes I assigned as per the instructions. The only change I made was setting "local brakeReversed =" to true. I can see from looking at this, and my findings in the sim that the rudder input is applying the brakes irrespective of the actual input to the brake lever. The brake lever is itself running so that it can be pressed and will apply the brakes, but again does take into account the rudder position. Sorry as I am unable to see how to resolve this in the code, or if I myself have done something wrong. PSB log: Unfortunately the attachment limit is too small for me to attach the log. Quote ********* FSUIPC7, Version 7.5.4 (13th July 2025) by John Dowson ********* WebSocket server found: D:\FSUIPC\\Utils\FSUIPCWebSocketServer.exe Windows 11 detected - setting DisableMSFSMonitor to 'Enum' Windows 10 Home 64 Bit reported as Build 22631, Release ID: 2009 (OS 10.0) FSUIPC is running with standard privileges Reading options from "D:\FSUIPC\FSUIPC7.ini" Checking the Registrations now ... User Name="harry smith" User Addr="smithy-harry@hotmail.co.uk" FSUIPC7 Key is provided WIDEFS7 not user registered, or expired 47 System time = 06/08/2025 17:31:21 47 Allowing calibration when not assigned with 'Send direct to FSUIPC Calibration' 63 ------------------------------------------------------------------- 63 *** Preset name 'Cirrus_SF50_Vision_Jet__MSFS2024_-_Toggle_VNV_Button_in_Autopilot_On_and_OFF' exceeds max allowed length of 63 characters - ignoring 219 *** Preset name 'NAV_GPS_SWAP__NAV__button_on_EFIS_Control_Panel__LEFT_SIDE__CAPTAIN_' exceeds max allowed length of 63 characters - ignoring 219 *** Preset name 'NAV_GPS_SWAP__NAV__button_on_EFIS_Control_Panel__RIGHT__SIDE__FIRST_OFFICER_' exceeds max allowed length of 63 characters - ignoring 235 *** Preset name 'Main_instrument_panel_standby_attitude_indicator_cage_button_release' exceeds max allowed length of 63 characters - ignoring 235 Preset file 'D:\FSUIPC\myevents.txt' not found [info only] 235 19666 Calculator Code presets have been loaded and are available for use 266 Registered HotKey 'InvokeFSUIPCOptionsKey' (key=0x46, modifier=0x1) 282 FS path = "" 297 ---------------------- Joystick Device Scan ----------------------- 297 Product= Rhino FFB Joystick 297 Manufacturer= VPforce 297 Serial Number= 3359534E0100004C52006600 297 Vendor=FFFF, Product=2055 (Version 2.8) 360 GUIDs returned for product: VID_FFFF&PID_2055: 360 GUID= {A8C007E0-1192-11F0-800C-444553540000} 360 Details: Btns=64, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R255,U255,V255,X4096,Y4096,Z4096 360 Product= MFG Crosswind V2 360 Manufacturer= MFG 360 Serial Number= MFG500002 360 Vendor=16D0, Product=0A38 (Version 33.1) 360 GUIDs returned for product: VID_16D0&PID_0A38: 360 GUID= {1ECE9D80-1192-11F0-8009-444553540000} 360 Details: Btns=2, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R4096,U0,V0,X4096,Y4096,Z0 360 Product= L-VPC Throttle MT-50 375 Manufacturer= VIRPIL Controls/20210102 375 Vendor=3344, Product=8191 (Version 0.1) 375 GUIDs returned for product: VID_3344&PID_8191: 375 GUID= {564B53C0-1192-11F0-800A-444553540000} 375 Details: Btns=84, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R16384,U16384,V16384,X0,Y0,Z16384 375 Product= Bravo Throttle Quadrant 375 Manufacturer= Honeycomb Aeronautical 375 Serial Number= 6F7B2E091F1A3B00 375 Vendor=294B, Product=1901 (Version 1.5) 375 GUIDs returned for product: VID_294B&PID_1901: 375 GUID= {966C4330-10C3-11F0-8001-444553540000} 375 Details: Btns=48, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R1023,U1023,V1023,X1023,Y1023,Z1023 375 ------------------------------------------------------------------- 375 Device acquired for use: 375 Joystick ID = 3 (Registry okay) 375 3=VPforce Rhino FFB Joystick 375 3.GUID={A8C007E0-1192-11F0-800C-444553540000} 375 Device acquired for use: 375 Joystick ID = 1 (Registry okay) 375 1=MFG Crosswind V2 375 1.GUID={1ECE9D80-1192-11F0-8009-444553540000} 375 Device acquired for use: 375 Joystick ID = 2 (Registry okay) 375 2=L-VPC Throttle MT-50 375 2.GUID={564B53C0-1192-11F0-800A-444553540000} 375 Device acquired for use: 375 Joystick ID = 0 (Registry okay) 375 0=Bravo Throttle Quadrant 375 0.GUID={966C4330-10C3-11F0-8001-444553540000} 375 ------------------------------------------------------------------- 407 LogOptions=00000000 00000001 407 Manually started with DetectToConnectDelay=1, InitialStallTime=15 3266 Simulator detected 4266 Trying to connect... 4282 SimConnect_Open succeeded 4282 Running in "SunRise", Version: 12.2.282174.999 (SimConnect: 12.2.0.0) 4282 MSFS version = 12.2.282174.999 4282 MSFS 2024 Steam installation detected 4282 Checking for FS path in 'C:\Users\Harry\AppData\Roaming\Microsoft Flight Simulator 2024\UserCfg.opt' 4282 FS path found = D:\MSFS Community\ 4282 FLT path = "C:\Users\Harry\AppData\Roaming\Microsoft Flight Simulator 2024\" 4282 FS path = "D:\MSFS Community\" 4282 Initialising SimConnect data requests now 4282 Offset file 'D:\FSUIPC\myOffsets.txt' not found (info only) 4282 Number of FS control/events registered : 1795 4282 Mapping custom control numbers 69632 - 84232 (maximum defined by ini parameter MaxCustomControlNumber, defaults to 84232 when not present) 4297 Maximum number of custom events available is 1024 (defined by ini parameter MaxNumberOfCustomEvents) 4297 C:\Users\Harry\AppData\Roaming\Microsoft Flight Simulator 2024\MISSIONS\Custom\CustomFlight\CustomFlight.FLT 4422 User Aircraft ID 39387136 supplied, now being used (myftm=1) 4422 Requesting keyboard input... 4422 Requesting user aircraft data... 4704 Aircraft loaded: running normally now ... 4704 System time = 06/08/2025 17:31:26, Simulator time = 17:31:26 (16:31Z) 4704 Requesting Input Events.... 4704 Starting WAPI (WAPI enabled)... 4704 [INFO]: **** Starting FSUIPC7 WASM Interface (WAPI) version 1.0.4 (WASM version 1.0.7) using connection -1 4704 [INFO]: Connected to MSFS 4704 Aircraft="Lancaster NX611 Just Jane" 4704 -------------------- Starting everything now ---------------------- 4766 Lvars received: 331 L:vars & 0 H:vars now available 4766 Lvars/Hvars received - checking aircraft autos.... 4829 LUA.1: Spitfire differential brake lua started 4860 LUA.1: rudderChange: value=0 4875 LUA.1: rudderControl sent with value=0 4891 LUA.1: Rudder %: 50 , brake %:100 4907 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 4922 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 4938 LUA.1: brakeChange: value=0 4954 LUA.1: Rudder %: 50 , brake %:50 4969 LUA.1: Left brake value sent: -0 (rudder % used: 100) 4985 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 5891 LUA.1: rudderChange: value=816 5907 LUA.1: rudderControl sent with value=816 5922 LUA.1: Rudder %: 52.490386376122 , brake %:50 5938 LUA.1: Left brake value sent: 816 (rudder % used: 95.019227247757) 5954 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 5985 LUA.1: rudderChange: value=6744 6000 LUA.1: rudderControl sent with value=6744 6016 LUA.1: Rudder %: 70.582310932064 , brake %:50 6032 LUA.1: Left brake value sent: 6744 (rudder % used: 58.835378135873) 6047 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6079 LUA.1: rudderChange: value=12079 6094 LUA.1: rudderControl sent with value=12079 6110 LUA.1: Rudder %: 86.864432643594 , brake %:50 6125 LUA.1: Left brake value sent: 12079 (rudder % used: 26.271134712812) 6141 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6172 LUA.1: rudderChange: value=7576 6188 LUA.1: rudderControl sent with value=7576 6204 LUA.1: Rudder %: 73.121528413599 , brake %:50 6219 LUA.1: Left brake value sent: 7576 (rudder % used: 53.756943172801) 6235 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6266 LUA.1: rudderChange: value=2608 6282 LUA.1: rudderControl sent with value=2608 6297 LUA.1: Rudder %: 57.959470182506 , brake %:50 6313 LUA.1: Left brake value sent: 2608 (rudder % used: 84.081059634987) 6329 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6360 LUA.1: rudderChange: value=0 6375 LUA.1: rudderControl sent with value=0 6391 LUA.1: Rudder %: 50 , brake %:50 6407 LUA.1: Left brake value sent: -0 (rudder % used: 100) 6422 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6704 LUA.1: rudderChange: value=456 6719 LUA.1: rudderControl sent with value=0 6735 LUA.1: Rudder %: 50 , brake %:50 6750 LUA.1: Left brake value sent: -0 (rudder % used: 100) 6766 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6797 LUA.1: rudderChange: value=7512 6813 LUA.1: rudderControl sent with value=7512 6829 LUA.1: Rudder %: 72.926203991943 , brake %:50 6844 LUA.1: Left brake value sent: 7512 (rudder % used: 54.147592016114) 6860 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6891 LUA.1: rudderChange: value=13135 6907 LUA.1: rudderControl sent with value=13135 6922 LUA.1: Rudder %: 90.087285600928 , brake %:50 6938 LUA.1: Left brake value sent: 13135 (rudder % used: 19.825428798144) 6954 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 6985 LUA.1: rudderChange: value=13399 6985 LUA.1: rudderControl sent with value=13399 7000 LUA.1: Rudder %: 90.892998840261 , brake %:50 7016 LUA.1: Left brake value sent: 13399 (rudder % used: 18.214002319478) 7032 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 7063 LUA.1: rudderChange: value=12311 7079 LUA.1: rudderControl sent with value=12311 7094 LUA.1: Rudder %: 87.572483672099 , brake %:50 7110 LUA.1: Left brake value sent: 12311 (rudder % used: 24.855032655802) 7125 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 7157 LUA.1: rudderChange: value=4440 7172 LUA.1: rudderControl sent with value=4440 7188 LUA.1: Rudder %: 63.550631752426 , brake %:50 7204 LUA.1: Left brake value sent: 4440 (rudder % used: 72.898736495147) 7219 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 7250 LUA.1: rudderChange: value=24 7266 LUA.1: rudderControl sent with value=0 7282 LUA.1: Rudder %: 50 , brake %:50 7297 LUA.1: Left brake value sent: -0 (rudder % used: 100) 7313 LUA.1: Rught brake value sent: -0 (rudder % used: 100) 8594 LUA.1: brakeChange: value=8575 8610 LUA.1: Rudder %: 50 , brake %:76.170420557895 8625 LUA.1: Left brake value sent: -8575 (rudder % used: 100) 8641 LUA.1: Rught brake value sent: -8575 (rudder % used: 100) 8657 LUA.1: brakeChange: value=-16384 8672 LUA.1: Rudder %: 50 , brake %:-0.0030519440883843 8688 LUA.1: Left brake value sent: 16384 (rudder % used: 100) 8688 LUA.1: Rught brake value sent: 16384 (rudder % used: 100) 9063 LUA.1: brakeChange: value=-15083 9079 LUA.1: Rudder %: 50 , brake %:3.9675273148996 9094 LUA.1: Left brake value sent: 15083 (rudder % used: 100) 9110 LUA.1: Rught brake value sent: 15083 (rudder % used: 100) 9125 LUA.1: brakeChange: value=7552 9141 LUA.1: Rudder %: 50 , brake %:73.048281755478 9157 LUA.1: Left brake value sent: -7552 (rudder % used: 100) 9172 LUA.1: Rught brake value sent: -7552 (rudder % used: 100) 9188 LUA.1: brakeChange: value=16127 9204 LUA.1: Rudder %: 50 , brake %:100 9219 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 9235 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 9282 LUA.1: brakeChange: value=16383 9297 LUA.1: Rudder %: 50 , brake %:100 9313 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 9329 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 9829 LUA.1: brakeChange: value=16127 9844 LUA.1: Rudder %: 50 , brake %:100 9860 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 9875 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 9891 LUA.1: brakeChange: value=5376 9907 LUA.1: Rudder %: 50 , brake %:66.407251419154 9922 LUA.1: Left brake value sent: -5376 (rudder % used: 100) 9938 LUA.1: Rught brake value sent: -5376 (rudder % used: 100) 9954 LUA.1: brakeChange: value=-15734 9969 LUA.1: Rudder %: 50 , brake %:1.9807117133614 9985 LUA.1: Left brake value sent: 15734 (rudder % used: 100) 10000 LUA.1: Rught brake value sent: 15734 (rudder % used: 100) 10000 LUA.1: brakeChange: value=-16384 10016 LUA.1: Rudder %: 50 , brake %:-0.0030519440883843 10032 LUA.1: Left brake value sent: 16384 (rudder % used: 100) 10047 LUA.1: Rught brake value sent: 16384 (rudder % used: 100) 10204 LUA.1: brakeChange: value=-15734 10219 LUA.1: Rudder %: 50 , brake %:1.9807117133614 10235 LUA.1: Left brake value sent: 15734 (rudder % used: 100) 10250 LUA.1: Rught brake value sent: 15734 (rudder % used: 100) 10266 LUA.1: brakeChange: value=1920 10282 LUA.1: Rudder %: 50 , brake %:55.859732649698 10297 LUA.1: Left brake value sent: -1920 (rudder % used: 100) 10313 LUA.1: Rught brake value sent: -1920 (rudder % used: 100) 10329 LUA.1: brakeChange: value=12927 10344 LUA.1: Rudder %: 50 , brake %:89.452481230544 10360 LUA.1: Left brake value sent: -12927 (rudder % used: 100) 10375 LUA.1: Rught brake value sent: -12927 (rudder % used: 100) 10391 LUA.1: brakeChange: value=16127 10407 LUA.1: Rudder %: 50 , brake %:100 10422 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 10438 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 10454 LUA.1: brakeChange: value=16383 10469 LUA.1: Rudder %: 50 , brake %:100 10485 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 10500 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 10516 LUA.1: brakeChange: value=16383 10532 LUA.1: Rudder %: 50 , brake %:100 10547 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 10563 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 10594 LUA.1: rudderChange: value=264 10610 LUA.1: rudderControl sent with value=0 10625 LUA.1: Rudder %: 50 , brake %:100 10641 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 10657 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 10891 LUA.1: rudderChange: value=0 10907 LUA.1: rudderControl sent with value=0 10922 LUA.1: Rudder %: 50 , brake %:100 10938 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 10954 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 10985 LUA.1: rudderChange: value=-1073 11000 LUA.1: rudderControl sent with value=-1073 11016 LUA.1: Rudder %: 46.725263993164 , brake %:100 11032 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11047 LUA.1: Rught brake value sent: -14237 (rudder % used: 93.450527986327) 11079 LUA.1: rudderChange: value=-8212 11094 LUA.1: rudderControl sent with value=-8212 11110 LUA.1: Rudder %: 24.937435146188 , brake %:100 11125 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11141 LUA.1: Rught brake value sent: 41 (rudder % used: 49.874870292376) 11172 LUA.1: rudderChange: value=-13983 11188 LUA.1: rudderControl sent with value=-13983 11204 LUA.1: Rudder %: 7.3246658121223 , brake %:100 11219 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11235 LUA.1: Rught brake value sent: 11583 (rudder % used: 14.649331624245) 11266 LUA.1: rudderChange: value=-14607 11282 LUA.1: rudderControl sent with value=-14607 11297 LUA.1: Rudder %: 5.4202527009705 , brake %:100 11313 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11329 LUA.1: Rught brake value sent: 12831 (rudder % used: 10.840505401941) 11422 LUA.1: rudderChange: value=-15191 11438 LUA.1: rudderControl sent with value=-15191 11454 LUA.1: Rudder %: 3.6379173533541 , brake %:100 11469 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11485 LUA.1: Rught brake value sent: 13999 (rudder % used: 7.2758347067082) 11500 LUA.1: rudderChange: value=-16256 11516 LUA.1: rudderControl sent with value=-16256 11532 LUA.1: Rudder %: 0.38759689922481 , brake %:100 11547 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 11563 LUA.1: Rught brake value sent: 16129 (rudder % used: 0.77519379844961) 12094 LUA.1: rudderChange: value=-15743 12110 LUA.1: rudderControl sent with value=-15743 12125 LUA.1: Rudder %: 1.953244216566 , brake %:100 12141 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 12157 LUA.1: Rught brake value sent: 15103 (rudder % used: 3.9064884331319) 12188 LUA.1: rudderChange: value=-8540 12204 LUA.1: rudderControl sent with value=-8540 12219 LUA.1: Rudder %: 23.936397485198 , brake %:100 12235 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 12250 LUA.1: Rught brake value sent: 697 (rudder % used: 47.872794970396) 12282 LUA.1: rudderChange: value=4360 12297 LUA.1: rudderControl sent with value=4360 12313 LUA.1: Rudder %: 63.306476225356 , brake %:100 12329 LUA.1: Left brake value sent: -7663 (rudder % used: 73.387047549289) 12344 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12375 LUA.1: rudderChange: value=9103 12391 LUA.1: rudderControl sent with value=9103 12407 LUA.1: Rudder %: 77.781847036562 , brake %:100 12422 LUA.1: Left brake value sent: 1823 (rudder % used: 44.436305926875) 12438 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12469 LUA.1: rudderChange: value=9743 12485 LUA.1: rudderControl sent with value=9743 12500 LUA.1: Rudder %: 79.735091253128 , brake %:100 12516 LUA.1: Left brake value sent: 3103 (rudder % used: 40.529817493744) 12532 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12563 LUA.1: rudderChange: value=14015 12579 LUA.1: rudderControl sent with value=14015 12594 LUA.1: Rudder %: 92.772996398706 , brake %:100 12610 LUA.1: Left brake value sent: 11647 (rudder % used: 14.454007202588) 12625 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12657 LUA.1: rudderChange: value=15935 12672 LUA.1: rudderControl sent with value=15935 12688 LUA.1: Rudder %: 98.632729048404 , brake %:100 12704 LUA.1: Left brake value sent: 15487 (rudder % used: 2.7345419031923) 12719 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12750 LUA.1: rudderChange: value=16223 12766 LUA.1: rudderControl sent with value=16223 12782 LUA.1: Rudder %: 99.511688945859 , brake %:100 12797 LUA.1: Left brake value sent: 16063 (rudder % used: 0.97662210828298) 12813 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 13282 LUA.1: rudderChange: value=15655 13297 LUA.1: rudderControl sent with value=15655 13313 LUA.1: Rudder %: 97.778184703656 , brake %:100 13329 LUA.1: Left brake value sent: 14927 (rudder % used: 4.4436305926876) 13344 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 13375 LUA.1: rudderChange: value=9751 13391 LUA.1: rudderControl sent with value=9751 13407 LUA.1: Rudder %: 79.759506805835 , brake %:100 13422 LUA.1: Left brake value sent: 3119 (rudder % used: 40.480986388329) 13438 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 13469 LUA.1: rudderChange: value=1248 13485 LUA.1: rudderControl sent with value=1248 13500 LUA.1: Rudder %: 53.808826222304 , brake %:100 13516 LUA.1: Left brake value sent: -13887 (rudder % used: 92.382347555393) 13532 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 13563 LUA.1: rudderChange: value=72 13579 LUA.1: rudderControl sent with value=0 13594 LUA.1: Rudder %: 50 , brake %:100 13610 LUA.1: Left brake value sent: -16383 (rudder % used: 100) 13625 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 17079 === Hot key unregistered 17079 === Stop called ... 17079 === Closing external processes we started ... 17594 === About to kill any Lua plug-ins still running ... 17750 Lua threads being terminated: 17750 1 = "D:\FSUIPC\spitfireBrake.lua" 17938 LUA: "D:\FSUIPC\spitfireBrake.lua": killed 17938 === Closing global Lua thread 18719 === About to kill my timers ... 18922 === Restoring window procs ... 18922 === Unloading libraries ... 18922 === stopping other threads ... 18922 === ... Button scanning ... 19016 === ... Axis scanning ... 19125 === Releasing joystick devices ... 19125 === Freeing macro memory 19125 === Removing any offset overrides 19125 === Clearing any displays left 19125 === Calling SimConnect_Close ... 19344 === SimConnect_Close done! 19344 === AI slots deleted! 19344 === Freeing button memory ... 19344 === Closing my Windows ... 19344 === Freeing FS libraries ... 20360 === Closing devices ... 20360 === Closing the Log ... Bye Bye! ... 20360 System time = 06/08/2025 17:31:41 20360 *** FSUIPC log file being closed Minimum frame rate was 42.7 fps, Maximum was 46.1 fps Average frame rate for running time of 13 secs = 44.1 fps Maximum AI traffic for session was 14 aircraft Traffic deletions 0 aircraft Memory managed: 10 Allocs, 8 Freed ********* FSUIPC Log file closed *********** ** Edit : for completeness, this is your initial description of the issue *** Quote I was very happy to discover this solution for making it possible to use differential braking with one axis in msfs. The Avro Lancaster (amongst others) also used this single lever for differential braking. I have been trying to make it work in my sim, however I have reached a dead end. Presently: Pulling the lever applies both brakes - excellent! When I add left rudder the left brake comes on, and the right reduces, visa versa - great, apart from it does this without input from the brake lever. When the brake lever is applied and rudder is input, the brakes just come on as if there was no differential braking. I apologies as this is beyond my basic understanding of the FSUIPC world, so any help would be appreciated. I have searched around and attempted to change numerous settings with no joy. Edited 5 hours ago by John Dowson Initial problem description added
John Dowson Posted 20 hours ago Report Posted 20 hours ago 5 minutes ago, Hazzer111 said: Unfortunately the attachment limit is too small for me to attach the log. You can always compress/zip it. Your attachment limit will increase the more you post. 7 minutes ago, Hazzer111 said: I can see from looking at this, and my findings in the sim that the rudder input is applying the brakes irrespective of the actual input to the brake lever. The brake lever is itself running so that it can be pressed and will apply the brakes, but again does take into account the rudder position. Looking at that log, you are getting some differential braking via FSUIPC, e.g. Quote 12688 LUA.1: Rudder %: 98.632729048404 , brake %:100 12704 LUA.1: Left brake value sent: 15487 (rudder % used: 2.7345419031923) 12719 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) 12750 LUA.1: rudderChange: value=16223 12766 LUA.1: rudderControl sent with value=16223 12782 LUA.1: Rudder %: 99.511688945859 , brake %:100 12797 LUA.1: Left brake value sent: 16063 (rudder % used: 0.97662210828298) 12813 LUA.1: Rught brake value sent: -16383 (rudder % used: 100) Can you check that you also don't have the brakes assigned to the brake axis events anywhere else, i.e. both in FSUIPC and in MSFS. Also, generate another log but this time also set logging for Axes Controls. This script is also quite old and I can't remember it in detail. I will have to go over it again and get back to you. I am pretty busy at the moment so this may take a day or two. John
Hazzer111 Posted 18 hours ago Report Posted 18 hours ago 2 hours ago, John Dowson said: You can always compress/zip it. Your attachment limit will increase the more you post. Looking at that log, you are getting some differential braking via FSUIPC, e.g. Can you check that you also don't have the brakes assigned to the brake axis events anywhere else, i.e. both in FSUIPC and in MSFS. Also, generate another log but this time also set logging for Axes Controls. This script is also quite old and I can't remember it in detail. I will have to go over it again and get back to you. I am pretty busy at the moment so this may take a day or two. John I definitely have no other inputs - I have triple checked presently this is the only thing I have set up fsuipc for as well. The script is doing something and it is almost correct but not quite right. As you say I do get differential braking, but it is doing that just off the rudder input alone (so with the brake released) - but as I had mentioned previously, the brake lever operates independently as well in this mode (when applied it applies brakes to left and right regardless of rudder pos). Hope that makes sense as to what it should do and what it is actually doing. If needed I can send a video of it at some point. No rush getting to this either as I wont be at my pc for a few days.
John Dowson Posted 4 hours ago Report Posted 4 hours ago 16 hours ago, Hazzer111 said: The only change I made was setting "local brakeReversed =" to true. I think this is the issue - or one of them. By setting this to true, the script is sending a value of +16384 for brakes off, and -16383 for brakes full on. Try setting that back to false. This variable is to reverse the brake axis values sent to the sim. In fact, the script is not clear on this and it seems that it wasn't tested properly with a reversed brake lever axis. I have corrected this in the attached script, so please try this and set brakeAxisReversed to true and leave brakeReversed as false. The second issue is that the initial brake lever offset will be set at 0, which is 50% brakes. I have also attempted to correct this in the attached script, which explicitly calls the brakeChange function to set an initial value of -16383 ( or +16383 if reversed) so that brakes are initially off. Please try this and let me know how it goes, and show me / attach your log if any issues (with enableLog set to true). John spitfireBrake.lua
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