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FlyJSim Developer Update - Q4XP UNS And Shared Flight Alpha


Shared Flight

We’re getting closer! Over the past few months, we’ve beenundertaking private testing, making sure our server infrastructureholds up, and tailoring aircraft configurations to work as flawlesslyas possible.

Some of you may recall signing up to our beta-signup sheet, andvoicing your opinions on what aircraft you want to see.


We are happy to reveal a few more aircraft to you today that willbe available at the launch of beta testing! Bare in mind that this isnot the full launch list, and aircraft may be added.

  • FlyJSim 732 TwinJet v3
  • FlyJSim 727 Series v3
  • FlightFactor A320
  • FlightFactor 767 Collection
  • FlightFactore 757 Collectino
  • Hotstart TBM900
  • Carenado Bonanza
  • Laminar Research B58 Baron
  • Laminar Research Cessna 172
  • Laminar Research 737-800
  • ToLiSS A321
  • ToLiSS A319
  • Just Flight PA28 Arrow
  • Rotate MD-80
  • IXEG 737-300
  • HoldMyBeer SR22

If you don’t see a particular aircraft on there, don’t worry. We’restill updating our list and listening to feedback and developers.

Is Testing Available Yet?

On the 29th July, we moved Shared Flight into an expanded Alpha. Afirst wave of invites were sent out for Discord users. We now haveover 70 users using the plugin, and we couldn’t be happier with theresponses.

Our aim with Shared Flight is to have users trust theprocess. Flying with others shouldn’t be more complicated than flyingsolo. Not only do our alpha testers appear to be embracing thisconcept, but also taking to more challenging conditions they would nothave otherwise done so themselves.


Q4XP development continues at a swift pace. The biggest advancementin the last few months has been the UNS, which is being worked onferociously by Justin and Amy. The current version of the UNS thatwill ship in the Q4XP v1.0 is the UNS-1E with version 802/803. We havea few clips to show for the first time today.

What makes the UNS different from the default FMC? For the firsttime, we’re actually "simulating" an FMS unit, and not just asuperficial unit designed to interface for route planning. Therefore,everything gets considered into the simulation. Sensors, electricalinput, approach handling, data handling is all a deep part of oursimulation.


Let's take the sensors as an example, positional data input (eitherfrom GPS, GNS etc) makes use of Kalman filters. This is an algorithmdesigned to provide an estimate out of f multiple, random inputs. TheUNS can filter out statistical noise, and also make predictions in theabsence of data. Keep an eye on those RNP tolerances!

Our UNS will simulate a level of electrical connection, and act asindependent units. Each unit is tied to an electrical input sourcefrom the aircraft. Once connected, each unit will compute at realistictimes. Loading screen times will variably change, changing pages comesat varying refresh rates, the display will even simulate a linear lagtime from top to bottom with a screen change.

Because each unit can act independently, a separate communicationbus link must be simulated independent of both UNS units, and enablingcrossfill. Whilst the Q4XP ships as a dual UNS unit, the groundwork isin place for each unit to act in single configuration.

And on the topic of independent control, how about independentdisplay control? Take charge of display brightness, power andposition.

There’s a lot to talk about the Q4XP, and we can’t wait to sharefurther details with you next time!

Setting Expectations

We’ve heard a lot of comments..for a comment on our developmentplans. To be simple and to the point, our plans have not currentlychanged, and our current lineup of products in development are forX-Plane only at this point in time.

On the contrary, we welcome and respect companies that aim to pushthe boundaries of flight sim. We’ve been in this genre for many years,and we follow the work of many of our peers. Our ideals as a companyis for high quality simulation and as much of a care for our fans aspossible. It’s fantastic to see developers that subscribe to thatideal. The community is all the more stronger for it when it does!

FlyJSim Introduces Shared Flight

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