Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Linear curve for elevator and aileron. Axis Ohs

Featured Replies

In the MSFS 2020 flight simulator, I can change the slope of the response curve in the Extremity Dead Zone field in the Control Options /Sensitivity. The slope remains a straight line, so it is linear.

In AAO I have so far only found the possibility to change the function of the curve into a more or less curved response curve using the Curve function. My question: How can I create a linear (straight) response curve with a smaller slope?
Thanks Stefan

 

spacer.png

regards
Stefan Liebe

  • Author

Thank you for your answer. I hope that this will come in a future release.

regards
Stefan Liebe

  • Commercial Member
55 minutes ago, Stefan01 said:

Thank you for your answer. I hope that this will come in a future release.

Why? I'm not sure that I understand the actual use case, what is this for, when would I want to have this?

Edited by Lorby_SI

LORBY-SI

1 hour ago, Lorby_SI said:

Why? I'm not sure that I understand the actual use case, what is this for, when would I want to have this?

This could shed some light on this topic.
Flight control movement is linear, not on curves. Sensitivity adjustment with +/- curves near the center will initially give a plausible reaction.  As soon as you move away from that position and travel away from the center, due to the curved slope, flight controls become oversensitive to the extremities, and there you have an unrealistic reaction. The ideal solution should be something similar to the EXTREMITY DEAD ZONE, as is in the MSFS2020 menu.
 
 For @Stefan01I recommend using first +10 on the EXTREMITY DEAD ZONE, second, reducing REACTIVITY to 80% as a starting point, and the last resort, minimal adjustments on the SENSITIVITY menu. 

747 Captain for the last 39 years, and still learning. 

  • Commercial Member
42 minutes ago, LRBS said:

This could shed some light on this topic.

Unfortunately it doesn't - I still don't see in what situation I would need this (=what input device behavior or aircraft would make that necessary). IMHO we are not dealing with flight controls here, but with USB gaming hardware. There is no telling how the input values are generated by that hardware - I have seen quite a few devices that are anything but linear. I am just surprised by the request, what is there seemed to be good enough for the existing customers?

All that being said, if you find yourself in this situation, you can of course either assign your controller in the sim itself, or use a script in AAO to calculate every kind of input/output conversion that you fancy. All you need are the maths.
I can't be sure (because I simply don't understand it) but isn't the "extremity deadzone" the same as pulling the blue triangles towards the middle in AAO?

Edited by Lorby_SI

LORBY-SI

Are you saying that the 6  controller variables that are available in the sim are irrelevant, other than the curve adjustment that a&o  provides?

  • Commercial Member
18 minutes ago, flyforever said:

Are you saying that the 6  controller variables that are available in the sim are irrelevant, other than the curve adjustment that a&o  provides?

I'm not saying anything. I want to understand what the feature that the OP requestd is for and in what situation it is needed, so I can decide about the feasibility of implementing it. 

When an apparently "core" feature is requested after an app has been out for several years that is always a surprise. And it warrants a more careful requirement analysis - to make sure that the feature isn't actually already there, just with a different name and/or setup.

 

Edited by Lorby_SI

LORBY-SI

  • Commercial Member
27 minutes ago, flyforever said:

Are you saying that the 6  controller variables that are available in the sim are irrelevant, other than the curve adjustment that a&o  provides?

AAO provides a curve - and linear/nonlinear deadzone, offset deadzone, software detents, changing the "range" of the axis both on the input and output values - plus applying any form of conversion that you want via scripts.

When the red/blue triangles and mouse click/wheel controls are not precise enough, activate "Tool->Axis advanced mode". Then you get a "RAW" button on the axis panels - that calls up an extra dialog where you can change the margins, deadzone and detents numerically.

Edited by Lorby_SI

LORBY-SI

2 hours ago, Lorby_SI said:

Unfortunately it doesn't - I still don't see in what situation I would need this (=what input device behavior or aircraft would make that necessary). IMHO we are not dealing with flight controls here, but with USB gaming hardware. There is no telling how the input values are generated by that hardware - I have seen quite a few devices that are anything but linear. I am just surprised by the request, what is there seemed to be good enough for the existing customers?

All that being said, if you find yourself in this situation, you can of course either assign your controller in the sim itself, or use a script in AAO to calculate every kind of input/output conversion that you fancy. All you need are the maths.
I can't be sure (because I simply don't understand it) but isn't the "extremity deadzone" the same as pulling the blue triangles towards the middle in AAO?

I'm at a loss here and sought clarity in understanding the implications and reaction between linear and curved flight control's response. We are precisely dealing with flight controls/hardware connected via USB. As a real pilot, I have no knowledge of programming; I'm sharing with you what we expect to see and adjust very easily in a menu without too much involvement. Like an EXTREMITY DEAD ZONE slider in MSFS2020. 
I'm sorry, but I don't use the software anymore and don't know anything about the blue triangles.

747 Captain for the last 39 years, and still learning. 

  • Commercial Member
16 minutes ago, LRBS said:

I'm sorry, but I don't use the software anymore and don't know anything about the blue triangles.

From what you wrote, I am starting to think that they are exactly the same thing. The blue triangles control the deadzones at the edges of the axis (=the "extremities"?), called "Margins" on the RAW dialog. They have nothing whatsoever to do with the curve, so the behavior of the control is still linear.

Maybe the triangles are not doing their job correctly, but I have no frame of reference. It feels like everything is already in place, just named differently. But as I said, I can't be sure. I need a concrete, bullet proof use case that I can test and verify on my end (=hardware in use, aircraft in use, expected behavior  vs. observed behavior)

Edited by Lorby_SI

LORBY-SI

  • Commercial Member
13 hours ago, Stefan01 said:

In the MSFS 2020 flight simulator, I can change the slope of the response curve in the Extremity Dead Zone field in the Control Options /Sensitivity. The slope remains a straight line, so it is linear.

In AAO I have so far only found the possibility to change the function of the curve into a more or less curved response curve using the Curve function. My question: How can I create a linear (straight) response curve with a smaller slope?
Thanks Stefan

 

 

Try pulling in the blue triangles towards the middle, maybe that does what you are looking for. The control the left/right deadzones at the edges of the axis.

If you need more precision, activate "Tools->Axis advanced mode" and you get a "RAW" button on the axis control which opens a dialog where you can set the left/right margins numerically.

Edited by Lorby_SI

LORBY-SI

2 hours ago, Lorby_SI said:

I'm not saying anything. I want to understand what they are for and in what situation they are needed, so I can decide about the feasibility of implementing them. 

When an apparently "core" feature is requested after an app has been out for several years that is always a surprise. And it warrants a more careful requirement analysis.

 

In my case, in order to reduce the bobbing of some aircrafts during the approach phase, adjusting the "reactivity" variable is very useful. With this variable, the pull or push on the yoke retards the aircraft's pitch behavior.

Perhaps a&o's curve does the same thing. MSFS appears to use the "sensitivity" variable.  Anyway, it seems to me that there should be no confusion between what msfs control variables do and what a&o does. A well written page comparing each individual variable might be helpful.

 

  • Commercial Member
3 minutes ago, flyforever said:

Perhaps a&o's curve does the same thing. MSFS appears to use the "sensitivity" variable.  Anyway, it seems to me that there should be no confusion between what msfs control variables do and what a&o does. A well written page comparing each individual variable might be helpful.

Unfortunately they cannot be compared. MSFS controller assignments and what AAO is allowed to do over SimConnect are two completely different things. The entire logic in AAO is our own and has no reference or simlarity to MSFS at all.

LORBY-SI

  • Author

I use this function for the elevator and aileron in the Airbus. The responses to the sidestick are linear, but not as strong as with the specified gradient. If the slope were less strong, the response of the control surfaces would be less strong with a given sidestick deflection. This would be particularly important during flare in order to be able to do a perfect landing.

regards
Stefan Liebe

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.