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Trimming Force Feedback Stick and no negative elevator authority.


Go to solution Solved by AeriaGloria,

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Posted

Is anyone else having a problem with not having any negative elevator authority?  I can barely get the thing to put it's nose down.  Stick is showing shoved full forward and It's barely lowering it's nose.  Seems worse at higher speeds, but it's doing it at all speeds.  Am I missing an automatic setting somewhere?  Also trim controls don't seem to be working correctly with Force Feedback sticks.  I can see that I am pushing the trim hat forward on the virtual stick, but I'm feeling the forces trim right.  Took me forever to be able to get the stick centered with the controls crossed.  It feels like the forces might be rotated 90 degrees?  

Sidewinder FF 2

  • Solution
Posted

This is normal for low to medium altitude and medium to high speeds, and is made worse the higher your engine setting 

It just has low negative elevator deflection, stick moves half as far away from you as towards you. 
 

The manual has many warnings that with enough weight on wings, you might not be able to full stop pitch up with stick. 
 

And that increasing throttle causes pitch up. 
 

So when it happens, decrease throttle, hold trim, or slow down 

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Posted

Yikes, wow, that's an actual flight characteristic?  I thought this thing was supposed to be nimble?  Having almost no authority in half of one of it's primary control axis is not something I would expect in a nimble fighter.  At least I don't have to worry about redouts, Mig-29 doesn't have enough negative nose authority to cause one I guess.  Not marking solved because I still think there is something wonky with FF and trim forces, at least with my Sidewinder FF2.

Posted

Ok, so not as extreme as I thought at first.  Went out with reduced fuel and was able to Redout pretty easily, the problem seems most extreme when I was starting in the air with 100% fuel.  Still feels like it doesn't have enough nose down force, but I've never flown a Mig-29 so what do I know.

Posted
11 minutes ago, Psifire said:

Ok, so not as extreme as I thought at first.  Went out with reduced fuel and was able to Redout pretty easily, the problem seems most extreme when I was starting in the air with 100% fuel.  Still feels like it doesn't have enough nose down force, but I've never flown a Mig-29 so what do I know.

Well you also have to remember MiG-29 has an ARU system, so deflection might be decreased by more then 50% at certain points 

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Posted (edited)
3 hours ago, Psifire said:

Yikes, wow, that's an actual flight characteristic?  I thought this thing was supposed to be nimble?  Having almost no authority in half of one of it's primary control axis is not something I would expect in a nimble fighter.  At least I don't have to worry about redouts, Mig-29 doesn't have enough negative nose authority to cause one I guess.  Not marking solved because I still think there is something wonky with FF and trim forces, at least with my Sidewinder FF2.

Almost any fighter will have reduced authority to pull negative G's. They are more dangerous to the human body, and pulling back on the stick takes better advantage of the wing designs.

 

We're also coming into the era of plane designs that are inherently unstable for increased maneuvering ability so that probably has to do with why the control authority is limited in negative G.

Edited by Ivandrov
Posted
6 hours ago, Psifire said:

Also trim controls don't seem to be working correctly with Force Feedback sticks.  I can see that I am pushing the trim hat forward on the virtual stick, but I'm feeling the forces trim right

Yes I noticed the same on my Rhino, so it’s not just the MSFFB2.

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Posted

I'm surprised to hear that as on my Rhino (no telemFFB interfering) the trim works like a dream and it's very easy to trim the Fulcrum (unless I'm going mach stupid then it loses the pitch authority and climbs)

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