Strange flight model behaviour with flaps
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Hi all,
This is something that gets brought up every now and again, and we always receive conflicting feedback from some users saying that it is correct, and other users saying that it is incorrect.
I've brought this topic up with our flight model developer, and from a flight model perspective, the stall speed with flaps set is correct, thus the amount of lift applied is correct. The amount of ballooning from flap extension is not directly controllable other than by the addition of lift. The more lift gives ballooning, but also a ridiculously low stall speed and likely an inability to touch down until you get close to that ridiculously low stall speed.
It's all a bit of a juggling act where one area of a flight model can't be improved without compromising another, plus we are dealing with physics in a flight simulator, which will never perfectly match up with real-world physics.
We of course log every piece of feedback we receive though, and it'll be something that gets looked at again the next time the flight models are worked on in our PA28s.
Hope that helps.
Mark - Just Flight
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Hi. I am a real-life Warrior pilot and I agree with @Jeremy68 and @copperenco. When setting flaps, the real world Warrior would pitch up (balloon) and you need to push down on the yoke. In MSFS2020 it behaved this way and I was surprised when it did not happen after the update.
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Real life PPL pilot here also. I share the same feedback regarding the unrealistic behaviour of the plane during 1st notch of flaps extension. But I appreciate and understand the JF/Mark + flight model developer explaination.
Would love that JP/Flight Model developer find an alternative for the next update.
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Just came here to ask about this. I'm almost positive this change was introduced in the recent update in May. I don't recall this behavior prior to that, where it drops upon extending first notch of flaps. I was Googling and have also seen some conflicting information about whether or not this is how the real aircraft performs. From some of the comments here I get the impression that it should not be dropping like that when flaps are extended.
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I can confirm that forward pressure is required with additional nose down trim on approach. I flew a Warrior for the first time last week and noticed this was quite the opposite of what the JF warrior is doing in the sim. Previously I flew the Archer II quite a bit.
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100 percent the flaps are inverted. No aircraft goes nose down when the flaps go down. The aircraft in the aim slows down as it should and it feels like it has lift but it is 100 percent not supposed to be pitching nose down to the point you have to fully pull on the yoke to keep it from crashing.
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In the cfg files there are a bunch of things related to how flaps behave and one of them is fore/aft movement of the COL when flaps are deployed. Modifying pitch up/down with flaps is rather trivial. I'll play around and report back here
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I think I got it to a happy place.
If you're not familiar with the MSFS file structure or have never done this before, I discourage it, but if you have you can replace these lines at the end of your warrior flight model file
flaps-position.0 = 0, -1, 1, 1, 1, 0, 0
flaps-position.1 = 10, -1, 1, 1, 1, 0, -0.2
flaps-position.2 = 25, -1, 1, 1, 1, 0, -0.3
flaps-position.3 = 40, -1, 1, 1, 1, 0, -0.4There's no impact to lift or overall handling of the plane other than to give the expected mild nose-up with flaps going down.
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I think I got it to a happy place.
If you're not familiar with the MSFS file structure or have never done this before, I discourage it, but if you have you can replace these lines at the end of your warrior flight model file
flaps-position.0 = 0, -1, 1, 1, 1, 0, 0
flaps-position.1 = 10, -1, 1, 1, 1, 0, -0.2
flaps-position.2 = 25, -1, 1, 1, 1, 0, -0.3
flaps-position.3 = 40, -1, 1, 1, 1, 0, -0.4There's no impact to lift or overall handling of the plane other than to give the expected mild nose-up with flaps going down.
@CdnCptMoustache
This fix is really helpful and would appreciate if you guided us on the name of the file and where the file is and how you changed this.To the Justflight team, this fix is really important. I'm sure everyone is experiencing the same strange behaviour of the flaps causing nose down.
