Just Flight’s 146 Professional v2.4 Upgrade to Release Next Week
Just Flight has recently shared the substantial changelog for their upcoming 146 Professional v2.4 upgrade for Microsoft Flight Simulator 2020 and 2024, introducing numerous improvements and full compatibility with MSFS 2024.


Currently discounted by 30% due to a Black Friday sale, the 146 Professional will receive a massive update next week - free of charge for previous owners -bringing feature parity with their RJ, native compatibility with Microsoft Flight Simulator 2024, and much more. The complete changelog follows below:
- Upgraded to a MSFS 2024 native package (MSFS 2024 only)
- Added additional model LODs for improved performance (MSFS 2020/2024) and MSFS 2024 compatibility
- Added Preflight Walkaround support (MSFS 2024 only):
- Chocks
- GPU
- Passenger and service doors (including airstairs)
- Cargo doors
- Enter/exit aircraft
- Added new, modern EFB tablet model (tablet can now be moved between two positions by clicking the top/bottom bezels)
- Added Jetway External Power logic - Default and GSX jetways, and GSX GPU, can now supply external power. Buttons on the EFB aircraft app allow for the selection of GPU or jetway power once available, or the overhead panel switch can be used as before.
- Added 'AUTO CABIN MUSIC' option to the EFB, allowing you to control whether the cabin crew switch the cabin music on/off.
- Added 'KNOB ACCEL' option to the EFB, allowing you to enable/disable knob rotation acceleration. Affects: NAV 1 CRS, NAV 2 CRS, HDG, ALT SEL, CABIN PRESS, ENG N1 bugs.
- Added support for third-party liveries to include livery configuration files.
- Added correct external equipment configurations (HF antenna, VHF3 aerial) and EFB KG/LB units for each 146 livery
- Added MSFS 2024 pilot characters – Cockpit seat positions are locked in MSFS 2024 due to a simulator limitation that prevents the pilot characters from moving with them (MSFS 2024 only)
- Added SimBrief OFP import functionality to UNS-1 FMS
- Added customised cabins to passenger liveries
- Added airstair controls for more accurate operation:
- Added Airstairs Accumulator (toggle via the EFB)
- Reworked airstairs controls based on logic from our RJ Professional
- Added STAIR RETRACTION switch to forward galley (used to extend/retract the airstairs)
- Added integral lights to the airstairs (controllable via the STAIR RETRACTION switch, toggleable via an option on the EFB)
- Added collision box to GPU
- Added drum ‘bounce’ animations to various drums in the cockpit (NAV CRS, ALT SEL, VHF COM 2, ALT BARO, DH)
- Added cockpit registration decal in cockpit (replacing texture based placard) allowing for greater clarity and customisability via the MSFS main menu
- Added Just Flight v3 EFB:
- Redesigned EFB interface
- Added support for Navigraph En Route Charts
- Improved data entry logic on the Aircraft page
- Reorganised EFB Configuration Menu options
- Added confirmation popup when changing aircraft states
- Improved transition logic between JS/HTML and WASM EFB pages
- SimBrief import payload option now syncs the correct passenger number, cargo quantity and ZFW (updated SimBrief profiles for each 146 will be available)
- Red warnings added to the EFB page when maximum weights have been exceeded
- Improved “Random Payload” logic
- Add light and dark themes to aircraft page (based on selected EFB theme)
- Added new buttons/indicators for external power sources
- Added Ground Air (GND AIR) button to supply aircraft with air from an external source when on the ground
- Fixed minor Pushback menu artwork issue
- Numerous other fixes and improvements to the EFB
- Added oxygen depletion simulation
- Added support for CENTRE RUDDER control assignment
- Added paper effect to interactive paper charts and checklists
- Added extra cabin/wing camera views
- Added window heating elements to front and side cockpit windows
- Added 'Ear' symbols to either side of MCP CRS knobs
- Added volumetric effects to beacon, nav and strobe lights
- Fixed aileron trim tab control rod animations
- Fixed minor bugs with Weather Radar
- Fixed minor missing cockpit emissives
- Fixed flap position indicator power source - now requires DC ESS power
- Fixed roll spoiler position indicators - now require DC ESS power
- Fixed reversed landing gear override switch logic
- Fixed engine fire handles illuminating during an overhead annunciator test
- Fixed rudder pedals animating in wrong direction when no hydraulic pressure is available
- Fixed minor bugs with speeds flipchart logic when the ‘FLIPCHART WT SYNC’ option on the EFB was toggle on/off multiple times
- Fixed 146-200 US Air registration typo in aircraft.cfg
- Fixed RT/INT switch on audio selector panels – is now a 3-position switch
- Fixed ENG 4 AIR switch incorrectly triggering the AIR SEL ON GRND caption
- MCP/glareshield button annunciators are now controlled by Captain's FLT ANNUNS BRT/DIM control
- Fixed EFB configuration menu CABIN LIGHTS slider clickspot
- Fixed RMI texture issue
- Fixed reversed emissive texture on AUTO SPLR switch
- Fixed small gap in rear cockpit window
- Fixed minor emissive texture issue with fuel quantity indicator
- Fixed UNS-1 FMS button emissive texture
- Fixed airstairs slightly clipping forward galley crew seat
- Fixed minor exterior model gaps
- Fixed main landing gear hydraulic lines not animating with gear
- Fixed FD pitch bars not commanding 10 degrees nose up when starting a flight on the runway
- Fixed various minor livery bugs
- Fixed beacon light flickering
- Fixed missing GPU beacon light on 146-200
- Fixed EXT AC PWR AVAILABLE dimming functionality
- Support added for up to 15 interactive checklists and 20 charts
- Fixed direction of port nav lights to prevent them illuminating the wing
- Improved Electrical system:
- Extensively upgraded for greater accuracy
- Reworked battery contact and busbar logic
- Added Auto Cut-Out (ACO) logic
- Reworked external power logic
- Adjusted GPU start/stop timings for greater accuracy
- Reworked warning light/annunciator power source logic for greater accuracy
- Reworked ground service bus for greater simulated depth
- Improved passenger cabin electrical sources
- Improved Air-conditioning system:
- Extensively reworked air-conditioning system
- Improved DUCT TEMP and CABIN TEMP relationship
- Improved temperature simulation that takes into account direct sunlight, door status, etc.
- Added ground air-conditioning simulation (via a button on the EFB aircraft page)
- Improvements to air-conditioning electrical power source logic for greater accuracy
- Improved Master Warning System (MWS):
- Fixed numerous MWS trigger conditions
- Improved Ground Op and dimming logic
- Fixed FLT REC OFF MWP caption not illuminating during a MWS test
- Improved APU system:
- Improved APU start/stop timings adjusted for greater accuracy
- Added APU RPM/TGT needle bounce when APU switch set to STOP (simulating an aircraft not fitted with the APU ECU mod)
- Improved APU electrical power sources for greater accuracy
- Increased APU fuel flow to closer match the real-world aircraft values
- Improved call/intercom system logic
- Improved trigger conditions
- Cabin > cockpit calls now correctly play a single chime
- Improved pilot callouts/cabin crew callouts/announcements
- Improved trigger conditions (most notably, flap callouts during approach now occur at more accurate, lower speeds)
- Improved cabin crew callouts triggers during taxi – “Cabin Is Secured” callout will now automatically trigger 5-8 minutes after the doors are closed, simulating the time it takes for a safety briefing and seat belt check. “Cabin Crew Seats For Take-off” logic remains the same, either triggered via the “CAB CALL” button on the overhead panel when the aircraft is in a take-off state, or automatically during the take-off run.
- Improved ASI bug logic
- Added dragging interaction to all speed bugs
- Added interaction logic between bugs
- Improved accuracy of bug positions that are set automatically from the speeds flipchart
- Improved Hydraulic system:
- Reworked PTU and hydraulic pressure depletion logic
- Increased rate of yellow and green system pressure increase
- AC pump is now powered by AC 1 busbar
- Improved DC pump simulation
- Improved PTU simulation
- Improved green system supply simulation
- Improved standby generator simulation
- Added hydraulic airstairs accumulator simulation
- Improved “LO PRESS” pressure annunciators logic
- Improved brake pressure accumulator discharge simulation and rate
- Improved brake temperature logic (brake cooling has been tuned to be closer to the real aircraft figures, both with and without brake fans operational)
- Improved Ice protection system:
- Improved Q-pot pressure head - power is now affected by the standby generator and landing light conditions
- Improved intake low pressure and valve annunciator light simulation
- Improved Fuel system:
- Fixed fuel feed low annunciator power source
- Improved fuel tank pump logic, including added delay to annunciators when switching pumps on/off
- Fixed fuel tank gravity feed logic
- Improved fuel low pressure annunciators logic to no longer take account of throttle lever position (HP cocks)
- Improved Lighting system:
- Added finer control added to cockpit lighting controls (more 'steps')
- Added cargo bay (forward/aft) lighting
- Added Airstairs lighting (controlled via the STAIR RETRACTION switch, togglable via an option on the EFB)
- Added cockpit ‘bounce’ lighting for more realistic illumination of areas such as the glareshield and overhead
- Improved flight deck storm and emergency light logic
- Improved navigation lights logic - high and low intensity settings are now simulated, each nav light on each wing now have separate power sources
- Fixed navigation lights disappearing when moving the camera further from the aircraft
- Added fade in/out effect to all external incandescent lighting (landing, taxi, wing, turnoff and logo lights)
- Improved electrical power sources for all exterior lights (including addition of ground service busbar)
- Improved panel states:
- Updated default lighting states based on aircraft state and time of day
- Updated autopilot altitude selector to now default to 10,000ft in ‘Ready for Takeoff’ and ‘Turnaround’ states
- Improved flight models:
- Updated maximum weights on all variants to FCOM ‘absolute’ weight standards
- Corrected maximum occupancy limit to 118 occupants (-200 and -300 variants are now correctly limited to 113 passengers each)
- Improved pitch stability in level flight
- Improved configuration horn logic
- Navigation instrument needles/indicators (ADI, HSI, RMI) will now exhibit drift based on signal strength
- Improved WASM initialisation logic
- Increased refresh rate of VHF NAV 1 radio display
- Improved tooltips throughout aircraft
- Improved potable water refill logic
- Improved EFB pushback functionality
- Improved 'No Smoking' signs logic, AUTO position now correctly takes into account nose gear position
- Improved engine oil quantity, temperature and pressure simulation
- Higher resolution text on glareshield/MCP for greater clarity
- Improvements to audio control panel volume logic
- Improved tiller and nose-wheel steering logic
- Improved lift spoiler and airbrake simulation, lift spoilers now more effective
- Improved flap baulk logic for greater accuracy
- Improved flap fault/inop and associated test logic
- Improved GPWS logic
- Improved Main ADI gyro logic, wobble added when applying powering to the ADI
- Improved Standby ADI gyro and caging logic, wobble added when caging the Standby ADI
- Failure Simulation logic tweaked to improve performance (FPS)
- Improved engine start and ignition logic
- Improved glass detail textures (MSFS 2024 only)
- Improved 146-300 Flap Trim Compensation (FTC) - trim change rate reduced
- Improved landing/taxi light models to given rounder edges (higher poly)
- Improved ADI aircraft symbol and flight director bar colours and emissive added
- Improved jetway auto attach/detach logic when boarding
- Improved default cockpit camera views
- Added support for brake axis control assignments
- Moved ‘navdata’ folder externally to the package to comply with MSFS 2024 SDK (Navigraph Hub has been updated to support the new location)
- Updated Simbrief profiles
- Updated UNS-1 FMS default nav database to AIRAC 2401
- Updated Operations Manual
- Updated EFB Manuals
- Updated UNS-1 FMS Operations Manual


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