Commercial Simulation Systems (CSS) has released version 1.6.41 of their Boeing 737-500 for Microsoft Flight Simulator 2020 and 2024.
This new update brings full native compatibility with Microsoft Flight Simulator 2024 and provides a solid foundation for the upcoming CSS 737-300 and 737-400 releases. Following an extended Experimental MSFS24 phase, the team has completed the transition to the new project structure while addressing a wide range of issues encountered along the way. As a result, the aircraft now benefits from MSFS24’s improved visuals and performance, delivering a noticeably smoother experience.
Alongside MSFS24 support, the update introduces several new features, including livery-specific engine ratings and winglet configurations, complete with a dedicated winglet flight model. This effectively expands the product into three distinct engine variants: 18.5K, 20K, and 20K with Winglets, each featuring its own performance profiles and calculations.
Audio has also received attention, with the addition of new stabiliser trim and ground roll sounds, as well as refinements to existing audio assets. These changes mark the first step toward a more comprehensive sound overhaul planned for a future update.
The EFB has been enhanced with multiple quality-of-life improvements, including automatic detection of the correct aircraft model and registration within the performance calculator. New panel states have also been added, allowing users to start directly in ‘Ready for Start’ or ‘Ready for Taxi’ configurations.
On the systems side, CSS has introduced VOR/LOC VOR, Go-Around modes, VNAV flap target speeds, and several other system enhancements. The RMI is now fully functional, rounding out several long-awaited avionics improvements.
Finally, the update includes an extensive list of bug fixes and system refinements. Major components such as the FMC, LNAV, VNAV, and autopilot have undergone substantial rework, alongside improvements to the flight model and system logic. Notable changes include revised parking brake behaviour to better reflect real-world operation and a near-complete rewrite of the speedbrake and ground spoiler logic.
A new launcher has also been added, providing a new, modern and sleeker experience. It is recommended to do a full reinstall of the new update to avoid any issues.
The full changelog can be found below.
To purchase the CSS Boeing 737-500 for Microsoft Flight Simulator 2020 and 2024, you can either subscribe on a per-month basis for $5 USD, an annual subscription of $50 USD, or a one-time purchase at $120 USD.
CSS Boeing 737-500 Changelog
- Aircraft performance table aligned with actual registration and engine rating
- Added 18.5K, 20K, 20K Winglet engine data
- Added new stab trim sounds
- Added new ground roll sounds
- Added Go Around modes
- Added VNAV approach flap setting target speeds
- Added EFB option for FO display FPS optimisation
- Removed winglets configuration from EFB
- Introduced a delay to DIR TO turns
- Fixed flap indicator going back to 0 after reaching Flaps 40
- Fixed CRZ WIND entry range
- Offset modified EHSI path push until path is complete
- Fixed incorrect stab trim movement with AP engaged
- Fixed missing ADF bearings on EHSI
- Improved glareshield shake effect
- Fixed SELECT DESIRED WPT screen showing several VORs with null coordinates
- Fixed LEGS first waypoint not matching RTE first waypoint
- Fixed distance-based navaid sorting
- Fixed light panel switches, cutout backlight missing
- Fixed the CVR needle during the test
- Fixed CTR getting hidden behind two altitude restrictions on the LEGS page
- Fixed CLB N1 not matching FMC
- Fixed DIR TO causing an unreasonable turn
- Fixed PPOS waypoint appearing on EHSI after DIR TO
- Fixed the RESET MCP ALTITUDE message appearing when it shouldn’t
- Fixed stab trim moving when switching views
- Fixed unresponsive brake pedals after autobrake disconnect
- Fixed T/O config warning triggered by speedbrake axis
- Disabled spoiler axis if armed using the mouse or keyboard
- Fixed speedbrake handle moves randomly to stow position
- Fixed VNAV PTH to VNAV SPD change missing
- Fixed VNAV PTH late descent due to missing decel
- Fixed VNAV PTH no rate change with speedbrakes extended
- Fixed early TOD when reaching TOC during departure
- Fixed missing VNAV mode termination when flaps are extended beyond 15
- Adjusted VNAV PATH profile priority over speed
- Fixed objects with a backlight having a separate emissive component
- Adjusted static changeover altitude
- Fixed the standby altimeter not working in MSFS2024
- Improved VNAV descent deceleration
- Fixed SID not clearing when changing departure airport in FMC
- Fixed POS INIT coordinates after recycling IRS
- Improved Autoland
- Improved Flaps lift & drag
- Adjusted Stall Warning Computer speeds
- Fixed green dot speed displaying above FL200
- Fixed autobrake disarming using toe brakes
- Fixed speedbrake handle animation in VC
- Fixed aircraft climbing above FMC cruise altitude
- Fixed the LEGS page not displaying Mach numbers
- Fixed VNAV SPD climb target not matching FMC
- Fixed TOD after STAR re-sequence
- Fixed MSFS2024 lights not having spills
- Fixed waypoint disappearing when using direct to fix during departure
- Fixed vertical channel staying in FMC_PATH after altitude restriction removal
- Fixed VNAV commanding excessive V/S for path recapture
- Fixed MCP Mach displaying 0.60 when switching from VNAV
- Fixed MCP SPD mode not engaging with VS
- Fixed being able to select MCP SPD with LVL CHG
- Fixed MCP modes not deselecting
- Fixed ADF receivers not detecting the signal
- Fixed RDMI ADF arrows not displaying bearings
- Fixed RDMI DME indicators showing 0 instead of dashes in ADF mode
- Fixed RDMI fail flags logic
- Fixed EHSI ADF pointers displaying VOR bearing instead of ADF
- Fixed EHSI VOR/APP mode not displaying CDI
- Fixed EHSI VOR/APP mode showing VNAV deviation instead of glideslope deviation
- Fixed the MCP VOR/LOC mode not working for VOR
- Fixed VOR/LOC mode not working FROM VOR
- Fixed EHSI waypoints disappearing too early
- Fixed unable crz altitude message that appears for the modified route
- Fixed thrust settings and FMC phase after missed approach
- Improved FMC Approach phase
- Improved EADI VMO/MMO barber pole movement with configuration changes
- Fixed flap setting being copied into the scratchpad when selecting VREF
- Improved autopilot turn tracking
- Fixed LVL CHG using VNAV target altitude if engaged after VNAV
- Fixed ASP3 backlight linked to the Aft Electronic panel
- Adjusted flight spoilers drag
- Fixed EFB Weather app filling both alternates in the Alternate field if SimBrief computes 2 alternates
- Increased EFB pushback speed
- Fixed EFB pushback, allowing selection of multiple directions at the same time
- Fixed Override Aircraft Configuration toggles Winglets
- Fixed Simbrief OFP cannot be displayed
- Fixed NAVIGRAPH app doesn’t set the airports value from OFP
- Fixed WEATHER app doesn’t set airport value from OFP
- Fixed PERF app doesn’t set the current Aircraft type
- Fixed PERF app doesn’t set the current reg number
- Fixed the GPU button missing
- Fixed the Load button missing
- Fixed Unable crz altitude message that appears for the modified route
- Fixed LEGS first waypoint missing if no departure runway is selected
- Fixed the Navdata out-of-date message with the latest Navigraph airac
