Yoke Calibration

[charlesallsop]

hi Pete I have a CH Yoke about ten years old but no problems thus far. But when trying to calibrate the elevator the min and max are not quite the same? Is this a problem? I find the elevator generally quite twitchy. Image attached.Cheers

Charles

[Thomas Richter]

Hi,

no, that's why you calibrate in FSUIPC to make the actual output even.

Did you calibrate in Windows first? Do that first as your center -5461 to -5331 is far out of the usual physical center should be.

Thomas

[charlesallsop]

Hi Thomas, went to calibrate in Win again, not really sure what they mean by "move the yoke in complete circles" but i rotated the yoke to move in a circle within the square.New image attached.

Thanks!

[Thomas Richter]

Hi,

Quote

went to calibrate in Win again, not really sure what they mean by "move the yoke in complete circles" but i rotated the yoke to move in a circle within the square.

somehow it looks like you didn't what windows ask for? Move the handle in complete circles mean you just move your controller to all full deflections, mechanical, couple times. Then leave it in center press the next button and so on up to the end where you confirm with OK.

The pic above shows that the controller is not in center and it seems you set an extreme wide dead zone, -5201 to 512 for elevator, that's nearly half way in one direction with no function.

Thomas

[charlesallsop]

Hi Thomas, thanks for your advice; I have attached a new image after applying your method. Does this look right?

 

[Thomas Richter]

Hi,

looks much better in any case. If you are happy with the dead-zones then it will do.

Thomas

[charlesallsop]

hi |Thomas, thanks again; I understand the left/right and in/out deflections but perhaps you could explain what the top and bottom numbers mean?

[Thomas Richter]

Hi,

if you mean the i.e.for Aileron then 512 (top) and 1536 (bottom), those are the Null-/dead-zone where the control is in center and you don't want any output other than zero (0). In this case FSUIPC will send a zero (0) value for input values 512 to 1536, when reaching those values it will gradually increase the from zero.

You will find the full description oh how to calibrate in FSUIPC as well in the FSUIPC user manual page 42.

Quote

6. For controls which have centres or intermediate ‘idle’ positions (aileron, elevator, rudder, spoiler, trim and the separate throttle and propeller pitch controls where centre (idle) is between forward and reverse), position the control in its centre, détente (e.g. “arm” for spoiler) or default position. Pressing the centre “Set” button will enter the value in one or other of the two boxes beneath. Each time you press Set the alternate value is recorded, and the boxes show the two most recent values in order (lower above higher). If the values are the same you will have no dead zone around the centre.

If you want to be able to simply take your hands and feet off the controls and expect them to centre well automatically, you will almost certainly need a central dead zone. You will also need one on a throttle or other control with a reverse range, otherwise finding idle will certainly be a problem. You can either:

• simply push/pull/swivel the controls in different directions and let go, so that they centre with their normal variation, and press the centre Set for the two most extreme values you get for the supposedly centred control, or
• more precisely, and the only way with throttles and other levers, move the control one way a little, press the centre Set, then the other way a little, and press Set again. This way you get to choose the size of the dead zone with more precision.

Thomas