Custom UNS-1 for the 146 Professional incoming

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By Richard Benedikz
News

Following the release of the 146 Professional for Microsoft Flight Simulator, the Just Flight development team has revealed they are working on major updates for the aircraft, including a custom UNS-1 Flight Management Computer.

The EFB will feature performance data functionality such as a dynamic CG, TMS and take-off and landing distance calculators.
The EFB will feature performance data functions such as a dynamic CG, TMS and take-off and landing distance calculators. Just Flight

According to the latest development update, the Just Flight team has nearly finished the EFB (Electronic Flight Bag) performance data functionality, which will include a dynamic CG (Centre of Gravity) chart, TMS (Thrust Management System) and take-off and landing distance calculators.

The team has also been developing a custom UNS-1 Flight Management System (FMS), an older style of unit fitted in aircraft during the 1990s and 2000s such as the Dash-8 Q400, Learjet 45, and the Bae 146, providing GPS navigation with outputs to autopilot LNAV and HSI functions. The navigation data is courtesy of Navigraph, enabling you to use the latest AIRAC cycles.

Additional controls have been added to the EFB configuration menu to allow you to quickly toggle between the existing modern FMS or the new classic FMS without the need to switch aircraft variants or restart the flight. You can also still disable the FMS entirely if you prefer conventional navigation.

We’ll begin this quick overview on the flight plan menu. The UNS-1 will have the option to load an MSFS flight plan and save the current flight plan.
The UNS-1 will have the option to load an MSFS flight plan or save the current flight plan. Just Flight
Full SID/STAR support is included, with the ability to select transitions and approaches. A quirk of the UNS-1 is shown here, with selections made using a numbered list rather than the LSKs.
Full SID/STAR support is included, with the ability to select transitions and approaches. A quirk of the UNS-1 is shown here, with selections made using a numbered list rather than the LSKs. Just Flight
The flight plan page is similar to that found on the existing FMS, showing the previous and next legs, their distances, headings and any altitude constraints. Here we can see the SID selected earlier.
The flight plan page is similar to that found on the existing FMS, showing the previous and next legs, their distances, headings and any altitude constraints. Here we can see the SID selected earlier. Just Flight
The UNS-1 also provides real-time fuel monitoring. With the passenger, cargo and fuel loads inputted prior to flight, the FMS will provide information on fuel flow, current fuel onboard, endurance and range.
The UNS-1 also provides real-time fuel monitoring. With the passenger, cargo and fuel loads inputted prior to flight, the FMS will provide information on fuel flow, current fuel onboard, endurance and range. Just Flight
Real-time performance information is also available, including groundspeed, wind direction/speed, OAT and ETE.
Real-time performance information is also available, including ground speed, wind direction/speed, OAT and ETE. Just Flight
Additional information is shown on other pages, such as the navigation page shown here.
Additional information is shown on other pages, such as the navigation page shown here. Just Flight
The FMS is fully integrated with the autopilot (LNAV) and HSI, just like the existing FMS. Distance, direct track and deviation to the next waypoint are all shown on the HSI.
The FMS is fully integrated with the autopilot LNAV and HSI, just like the existing unit. Distance, direct track and deviation to the next waypoint are all shown on the HSI. Just Flight

The FMS also has VNAV functionality, although as with the real aircraft this isn’t coupled with the VNAV autopilot mode, so you will need to make use of other pitch modes (IAS, VS etc) to manage your climbs and descents.

With altitude or flight level constraints for the flight plan waypoints and the desired vertical speed inputted into the FMS, the VNAV page will provide information on the top-of-descent point and target vertical speed.
With altitude or flight level constraints for the flight plan waypoints and the desired vertical speed inputted into the FMS, the VNAV page will provide information on the top-of-descent point and target vertical speed. Just Flight

Just Flight has not provided a release date for the new UNS-1 FMS but it is currently undergoing extensive testing and video guides will be made available as it nears release. More details are available on Just Flights In-Development section.

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Originally published in Key.Aero

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