F28 Professional

The engine sticking at 15-20% suggests that fuel isn't being introduced into the engine. Do you perhaps have any control assignments that could be triggering a fuel pump or fuel valve that is preventing fuel from being introduced to the engine?

A quick way of testing this will be to unplug any external hardware (yokes, throttle quadrants, etc), then try an engine start with everything unplugged. If both engines start correctly with everything unplugged, then a control assignment conflict is likely the cause.

If it is a control assignment conflict, you can go to MSFS Options > Controls Options, and click on the tab with the name of one piece of external hardware you have plugged in. Then, in the "SEARCH BY NAME" field, searching for "FUEL" should show you all the MSFS control assignments related to the fuel system and also show you which you have axis/buttons/switches assigned to on your external hardware. The control assignments that are causing a conflict can then be deleted here, or a new controller preset can be created using the "OPEN PRESET MANAGER" button at the bottom of the page.

Hope that helps.

Mark - Just Flight

I believe you would need to restart the flight in order for the lock wiring to reappear. You may also need to disable state saving (if enabled) to prevent the aircraft from loading in with the valve already open.

Mark - Just Flight

tHANKYOU VERY MUCH, I WILL GIVE IT A TRY!

We'll make a note to add that to the manual for the next update.

Mark - Just Flight

Found my own solution. For future onlookers use this instead:
c128c716-6c23-4708-add9-b99f91832927-image.png

Thank you for reporting this. We have updated our F28 Professional GSX profiles at the following link to fix this issue: https://support.justflight.com/en/support/solutions/articles/17000134895-f28-professional-gsx-profiles

Mark - Just Flight

guys i fixed it just go and find the pms gtn 750 mod for others and put the GTN 750 into the f28 guys itll fix all the issues. Im not using SU15BETA and believe me this will fix all I have a youtube channel I made a tutorial on how to replace the GNS530 by the GTN cuz for me the GNS530 is broken rn.
link :

https://www.youtube.com/watch?v=RgiWKQ0o9QM&t=132s

Excellent! Thanks a lot.

Hello @Mark :)

I already sent you an email to the address support gave me.

Thanks

Hey, I made an other occurrence with this display issue. This time the weather even made the aircraft go a little bit bellow the glide and you can see that the display is showing the opposite.

It really seems to be a very random issue... sometimes it occurs, sometimes not.

https://youtu.be/NxoX7zCqwIY?si=KI1YY0LaQ_H4VgT0

weather in LFQQ that day: LFQQ 191030Z AUTO 28015KT 9999 SCT019/// BKN025/// OVC038/// ///CB 11/08 Q1013 TEMPO 32015G25KT 3000 SHRA BKN012 BKN020TCU

@Mark Thanks for the clarification! Just bought, finally i can enjoy some Fokker flights! Just want to spend a minute to say that i have already the 146 Pro and the Avro Vulcan and i can definitely affirm that JustFlight is easily one of the best developer out there for msfs. Great quality addons and awesome attention to details. Good job guys!

@Mark I did what you said, renamed the community folder and then it worked. I thought that this was strange, since the only things I have in my community folder are (payware) scenery and aircrafts, the same ones that I had on my old PC in fact. Nothing that should interfere with the f28...

So I decided to do another reinstallation, removing the program using the Windows tool. But since I renamed the community folder it didn't uninstall it at all, so I ran the installer on top of the installed one already. All of the sudden it worked! Not sure how, but I have done 2 test flights now without any issues at all.

@AlexEtz Thanks for reporting this. I've logged this on our internal bugs tracker to investigate further.

Mark - Just Flight

@AlexEtz Thank you for the kind words. The F28 Professional was an enjoyable one for us to develop with it being so different to anything else, so we're glad to see our passion for it is reflected in the product. We'll pass on your words to the rest of the development team.

We'll be turning our attention to the F28 again soon to give it a similar treatment to that of the recent 146 Professional Version 2 update. There are some new features coming to the F28 that we haven't announced yet, so there's lots to look forward too!

Mark - Just Flight

@GroverJ41 Thanks for the clarification! The RMI turned into quite a headache during development and we had so little reference material regarding what each switch position stood for. Our coders must have found some reference material in the end to simulate the current logic.

With regards to the purple bug on the HSI, it will point directly to the active Navaid. So if you have a VOR tuned into the VHF NAV radios they will indicate the direction of the VOR. If you have a flight plan entered into the GPS, they will indicate the direction of the next waypoint.

Mark - Just Flight

Thank you.

Thanks for the reply, very nice to hear, it's cool to re-discover an aircraft with new way to use it.

By the way the INS unit on the pedestal is a Litton LTN-51, could be useful in places with low VOR/ADF coverage, remote island hopping, VIP/GOV, etc...

alt text

Maybe that could be considered after the release of the A300B4, even if it's a different unit

@pm_pilot The F70 and F100 are still a little way from release so we haven't yet finalised the pricing models for them, but we'll be sure to let everyone know the pricing and if any discounts are available once the pricing has been finalised.

Mark - Just Flight

@Microlight Hey Thanks for your update. I respectfully disagree regarding the load station amount. Even a simplified model of the 10 load stations would be better than the current implementation. The aircraft weight and balance documents allow for zone loading with the included change in moment as seen in figure 7 in the analysis? Would 10 loading stations exceed the technical capabilities of calculating the CG location for the simulation?

Additionally the aircraft is fully certificated to fly at the boundaries of the CG envelope as a normal operation with no additional procedures or consideration. For example in the CRJ-200 the aircraft is routinely operated at the maximum fwd cg, this is primarily a consequence of someone at bombardier thinking it was a good idea to certify the baggage hold to 3500lbs which necessitating taking the CL600 airframe and adding fuselage plugs in-front of the wing. Sometimes the aircraft was only within FWD cg limit because through the application of ballast in the aft cargo bin, sometimes in excess of 1000lbs.

So I disagree that a) just because the operation is close to the limit that it isn't realistic and b) that the current system is the best possible system because otherwise you would need to account for every seat, that is a straw man fallacy. Is there a fundamental technical limitation the CG cannot be made accurate to align with the weight and balance of the aircraft?

Thanks,
Crash

Edit: Additionally simply saying, "no we aren't planning on taking the time to update the code base" is also a justifiable reason. Cost benefit analysis are a driving force in decision making and planning.