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Revert part of commit 7a5a0b6 to fix Issue #517#561

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Issue517
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Revert part of commit 7a5a0b6 to fix Issue #517#561
HHS81 wants to merge 2 commits into
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Issue517

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@HHS81

@HHS81 HHS81 commented Jan 26, 2024

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@hbeni Please check if this solves all the issues, and still feels good- it seems to me that elevator authority is low on approach, but that might be due that I have flown the aircraft not for a long time

Signed-off-by: hhs81 <heiko.h.schulz@gmx.net>
@hbeni

hbeni commented Jan 26, 2024

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OK; my results:

pitching now happens at abut 65kts tailwind with the mentioned max-forward CoG.
Don't know if this is realistic.

Another thing, the "characteristic" stall break in pitch is not there anymore.

But aside from that, it looks okay, I think; especially elevator authotrity at approach looked still reasonable to me.

@hbeni

hbeni commented Jan 26, 2024

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Maybe something "in between" is achievable, where we have the old effect, but pitch up at say, 30 knots tailwind or so?

@HHS81

HHS81 commented Jan 26, 2024

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OK; my results:

pitching now happens at abut 65kts tailwind with the mentioned max-forward CoG. Don't know if this is realistic.

Another thing, the "characteristic" stall break in pitch is not there anymore.

But aside from that, it looks okay, I think; especially elevator authotrity at approach looked still reasonable to me.

Can you give me a hint how to reproduce the stall break in pitch? Or do you mean, that the aircraft doesn't stall anymore?

@hbeni

hbeni commented Jan 26, 2024

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Im no real pilot, but what i Know is that at the moment the stall happens, it should be a small sudden/rapid break down in pitch. This I can't induce with the branch, but without it.

@HHS81

HHS81 commented Jan 26, 2024

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Im no real pilot, but what i Know is that at the moment the stall happens, it should be a small sudden/rapid break down in pitch. This I can't induce with the branch, but without it.

I see- I just noticed, that the c172p used the same approach as I did- but just the correct coefficients. I'll test

@hbeni

hbeni commented Jan 26, 2024

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Footage, however not for a 182s, but you see what I mean:
https://www.youtube.com/watch?v=RmWZw71nV98

@HHS81

HHS81 commented Jan 27, 2024

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Footage, however not for a 182s, but you see what I mean: https://www.youtube.com/watch?v=RmWZw71nV98

Thanks- so you meant Power Off Stalls. It seems the problem behind is bigger: the c172p shows the same behavior by pitching over in tailwind, and stall behavior is less pronounced as I can remember. I have to dig further in previous versions to understand what is happening

@HHS81

HHS81 commented Jan 27, 2024

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Footage, however not for a 182s, but you see what I mean: https://www.youtube.com/watch?v=RmWZw71nV98

A much nicer video tutorial: https://www.youtube.com/watch?v=uN6uV_SPYcE

@hbeni

hbeni commented Jan 27, 2024

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Yes, power off stalls

Hey, Heiko, thanks for taking time to look at this. FDM-side I'm really lost.

Signed-off-by: HHS81 <Heiko.H.Schulz@gmx.net>
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