Hi,Since my last post on this subject I have revisited the problem from time to time and now, finally, have a solution.I use CH Flight Sim Yoke and Pro pedals (both USB devices) and have the registered version (3.22) of Pete Dowson's FSUIPC installed.I was finding that every time I went into 'Slew' mode the world started spinning. This could be stopped by either nudging the rudders or by briefly disconnecting and reconnecting the rudder controls. Today, I found that the spinning would occur when the Flight Sim Yoke is the only controller connected, Furthermore, I could control the spinning by movement of the Prop Pitch lever on the yoke. This turns out to be Z-rotation when you examine the assignments. Moving the lever forward caused rotation from R--->L and moving it backwards, the rotation is from L--->R. Centering the lever stopped all rotation.So, it would appear I have found the solution.... and a problem.What mystifies me is why this did not occur before? I usually update FSUIPC shortly after updates appear and so I have to assume that this manifested itself with a recent update.I have to admit that I never really paid much attention to the Prop Pitch setting other than 'play' with it from time to time in the sim to witness the effect on engine performance. I think my mistake has been to believe that the full back position of the Prop pitch lever was the 'Feathered' position whereas, in fact, this is Prop reversal on a/c designed to exploit such a setting. I now deduce that the 'Feathered' position is the poition of the lever when it is centered. Now, many of you are probably rolling your eyes to the heavens at this point as all this must seem very obvious..lol. So, the logical next move was to create a zone in the center using FSUIPC so that I could return easily to the 'Feathered' position whenever I wanted to 'Slew' the sim. This would have been easy except for the fact that I found another problem.I went to Page 2 of 8 in FSUIPC and set up the Max and Min settings for Prop Pitch and after checking the 'Map to 4 props' box I moved to Page 5 of 8 as directed. Try as I might I could not see a way to set up that null zone for the Feathered position until I realised that the labelling for 'Feather' and 'Min' appears to be the wrong way round. Thereafter, setting up the Prop Pitch lever 'Max' and 'Min' settings with my chosen 'Feather' position values of 0 and 2048 was straightforward.Now, all I have to remember is to move the Prop Pitch lever to the mid / straight up / 'Feathered' position before going into 'Slew' mode. Disconnection and reconnection / nudging of controller devices is no longer necessary. It's also taught me that the 'Feathered' position for Prop Pitch is not when the Prop Pitch lever is fully back but in the middle. I would be grateful if someone could jump in and confirm that my reasonings surrounding the Prop Pitch settings are indeed correct. Also, are my observations regarding the labelling for 'Feather' and 'Min' being the wrong way round on Page 5 of 8 in FSUIPC also valid?Cheers!Mike

Hi Mike,I cannot comment on the FSUIPC-specifics for the PropPitch axis,but I CAN probably explain why there is a difference if you use yoke-only and yoke+pedals.If you start up FS with both Yoke+pedals, my guess is that the Slew-assigment for rotation is automatically assigned by FS2004 to BOTH the rudderpedal axis AND PropPitch axis of the yoke.(FS just takes a default setup of the axis when it sees a controller; I think defines in file devices.cfg).Check this in Options/Assignements/SlewAxis.If this assumption is TRUE:Now, with the pedals centered and the Proppitch at min:If you touch the pedals, FS sees the movement of the axis and therefore centres the Slew (if you pedals are calibrated correctly).It DOESN"T see the PropPitch axis, because you are not moving it (and it obviously doesn't jitter in the full-down position).But I'm sure that if you do move the Proppitch now (and leave the rudder centered), the aircraft start turning in Slew.RIGHT ??If so: the problem is that you have 2 axis assigned to Slew Z-axis.And FS follows the position of the one it sees last moving. (either because you move it, or because it is "jittering")Which explains why (if you disconnect the pedals), FS just follows the PropPitch axis of your yoke (because the rudder axis of the pedals now doesn't override it).So what to do:In the fs9.cfg file, you can add a LOCKED=1 statement in the the joystick section; this prevent FS to change the assignments everytime it see the controller connected or not.So: make up your prefered Axis setting (with yoke and pedals connected) in FS, then exit FS and than add the LOCKED=1 statements to the fs9.cfg file.I don't believe the proppitch axis has a center position (you cannot set that in FSUIPC, can you ??).But when using it as rotation axis for Slew, then FS WILL using the center position (which is very unaccurate for a level without detente) as "stop-rotate"..Personally, I have removed ALL the Slew axis assignments (because all axis have to be centered when entering Slew), and just use the keyboard keys only.Cheers, Rob Barendregt.

Generally, the spinning is caused by an offset in the rudder control of the joystick or rudder pedals. It is especially prevalent in joysticks with the twist grip for rudder control.I find disabling the rudder control in the slew mode axes under settings, assignments, joystick axes, slew mode, select the rudder axes, select Delete Joystick Assignment works best.I normally use the Num-Pad with Num-Lock OFF to move the aircraft in the slew mode.W. Sieffert

Hey .. Sieffert,I thought I might see your observations in this post as well :-)But MINE was earlier AND more complete :-) :-) :-)Cheers, RobLOL

Hi,The same thing happened to me with my throttle - I could control the spinning with it.The solution? Choose Options/Controls/Axis and select your yoke. Then click the Slew Mode radio button. Now disconnect the Z-axis (or whatever) from the aileron axis.Hope this helps,--Tom GibsonCal Classic Propliner Page: http://www.calclassic.comFreeflight Design Shop: http://www.freeflightdesign.comDrop by! ___x_x_(")_x_x___

Hi Rob,I am but a 'simple' person, so I took to the easy way! :-lolW. Sieffert

Hi Guys,Thanks very much for your helpful responses. Took me a while to get my head around all the suggestions, but I think I understand now.As is usually the case, the solution turned out to be quite simple. I overlooked the assignments in Slew mode! On checking, I discovered immediately what was causing the problem. There was a conflict between the Prop pitch and the Yaw axis assignments. Both were assigned Z-rotation. Deletion of the Yaw Axis assignment in Slew Mode for my CH Flight Sim Yoke USB fixed it!Also, I think I was wrong about the FSUIPC labelling. I jumped into the Pilatus Porter VC and observed the movement of the prop blades as I moved the Prop Pitch control. It appears to be unnecessary to try to create a feather position as the blades feather around mid travel of the control and proceed to reverse as you move the control further back. So, I simply created a detente as I have done with the throttle by setting up the two values under the Min heading on page 5 of 8. Probably completely unnecessary...lolAll is now well and I've added to my knowledge about the inner workings of the sim :)Mike

Hi Mike,Glad you solved it.Unfortunately MS still persists in just assigning axis according to a default, without checking if this function axis is already assigned to another controller. At least it should give a warning.And two controllers driving the same axis function always gives these type of problems, especially since FS is only triggered by a CHANGE in a controller axis position.Cheers, Rob

I have the same problem as well. I have CH Yoke & Pedals. I just found a work around, seeing as everything else I've tried doesn't work and I'm lazy - I just hit pause (P), then slew (Y), then move the rudder pedals and release, so they're back to center, then I hit pause (P) to unpause it, and viola, it's fine.So for what it's worth, this works for me.

Hit the spacebar and the spinning will stop.I had this problem with FS2002 and never did fix it. For some reason no longer have it though in FS9.Eric

.....and I'm lazy - I just hit pause (P), then slew (Y), then move the rudder pedals and release, so they're back to center, then I hit pause (P) to unpause it, and viola, it's fine.....How do you mean LAZY if you have to do this every time again ??? :-) :-) :-)Why not solve properly (see posts above); you only have to do that ONCE :-)Cheers, Rob

No, that wouldn't solve Mike's problem.See posts above.Rob