Help needed with rudder and turn coordination parameters

[snippyfsxer]

I am trying to adjust the turning behavior of a particular airplane.

[olderndirt]

All aircraft have different control input characteristics, much the same as cars handle differently.

[snippyfsxer]

[quote]All aircraft have different control input characteristics, much the same as cars handle differently.

[Hagar]

FS flight dynamics is a highly specialised subject & not many people know much about it. Your best bet on this forum might be Brett Henderson. You could try sending him a PM. http://205.252.250.26/cgi-bin/yabb2/YaBB.pl?action=viewprofile;username=Brett_Henderson

[JakesF14]

Brett Henderson will be able to help you, and you can also ask Fr. Bill

http://205.252.250.26/cgi-bin/yabb2/YaB ... name=n4gix

[Brett_Henderson]

I'm here ..

[olderndirt]

[quote][quote]All aircraft have different control input characteristics, much the same as cars handle differently.

[JakesF14]

Wow Brett, now I've also learned a lot! Thank you very much!!

[snippyfsxer]

Thanks Brett,

This certainly gives me a lot to think about.

[Brett_Henderson]

THe MOIs are as tricky as everything else. As you'd assume, they're the inertia for rotation around a CG.

We can get so deep into fighting within the MSFS limitations, that we lose track of the area between easy, and realistic.. trying to avoid outright erroneous.

I use MOIs for in-flight "feel" only (bigger models feel heavier)... and then try to get control responsiveness to fill in the gaps. If you get a yaw MOI to feel correct during control use.. it's likely to be "off" when representing the "heaviness" of the model in general.. and can really mess up ground-handling. Like, on some larger models; enough yaw MOI to make in-flight turning realistic, could result in ridiculously sluggish ground handling.

When you get in-flight MOIs "feeling" proper.. then you can sneak into the cheat-zone of 'Flight_Tuning', and tweak the pitch/bank/yaw stability.

It's truly an endless fight, because of the limitaions of a desktop simulator trying to realistically mimmick what  should  require a warehouse full of super-computers 

You could end up cheating so much that a third party reader of you cfg dile, will think you're a nut 

TRy downloading my Bonanza... Load it with two, 200 pound, front-seat passengers (pilot and right-seat).. give it 60% fuel, add 100 pounds to the rear cargo bay.. set trim to neutral (by the indicator), and go fly it.  8-)

[olderndirt]

For what it's worth and going along with Brett, the size of the control surface is very important.

[snippyfsxer]

You designer guys are going to laugh at such a small feat, but I DID IT, and it makes me happy!

I increased Yaw Moment (Weathervane Stab) by 100%
Decreased Yaw Moment -Roll rate Adverse by 50%
Increased Dihedral Effect by 50%

The result is that the plane now requires about a quarter throw of rudder during the turn, and leans into the roll without it decaying into a spiral when rudder is applied steadily.

[olderndirt]

In real life, the amount of rudder needed in a turn is usually determined by the angle of bank.

[snippyfsxer]

[quote]In real life, the amount of rudder needed in a turn is usually determined by the angle of bank.

[Brett_Henderson]

[quote](watch me wind up reverting back to original flight model, just like you said above )

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