Have a strange problem which rears it's head intermittently. Wake turbulence gets generated in areas where there are no ai aircraft in the vicinity and makes GA flights impossible unless I turn off the wake turbulence option. What could be causing this issue, I have checked traffic toolbox and there are definately no ai aircraft nearby.

 

Setup is Active skies 2012 with SP2 installed on FSX with SP2 and acceleration. Windows 7.

You could be experiencing vertical air changes due to terrain differences on approach.

How do you know it's wake turbulence?  Could it just be turbulence?  What does it do to your aircraft and what aircraft is it?

As a start involving wake turbulence, in the options screen turn the effect down to something like 10%.  IMHO, the WT effect is way overdone.   Like the others say, you may be getting general turbulence.  Are you over water??  Rivers and lakes generate turbulence too, likewise mountains.  And there is a level of simply general turbulence generated at times.  I'm not in front of my flight sim computer but I seem to remember that general turbulence can be adjusted too.

 

 

IMHO, the WT effect is way overdone.

 

+1.  I was in the Turbine Duke at FL210 when a King Air flew past my nose a mile ahead.  It should have produced a good bump, perhaps, but it rolled me pretty quick 45 degrees.  A little much.  But that's what the slider is for, perhaps. 

You're probably flying too low for AS to create clear air turbulence?

I know it is wake turbulence because in the status window there is line after line of wake turbulence generated messages and the effect is way beyond any normal turbulence you could expect from meteorological conditions. The problem is gone now I switched the wake turbulence option off, just wondered what might have been causing it to be generated erroneously. It seems to happen mostly with my realair lancair legacy but can't imagine that is the root cause of it.

I'm going to disagree with you in a limited form here.  When AS is generating wx at loading it is normal for it to list all the traffic within X miles and list wake turbulence as being generated.  Again, this is normal.

 

Now to the strength and type of the turbulence you are experiencing.  Did you try lowering the wake turbulence slider to something like 5%??  Yes, AS generates much too strong a turbulence effect but the effect can be greatly reduced by lowering the slider.

Is it normal for it to continue to list wake turbulence generated messages even if I know for a fact there is no ai traffic anywhere near me. Also the effect disappeared specifically when I switched off the wake turbulence option, I still have all the normal turbulence options enabled.

I think the AI traffic doesn't have to be all that near to you for WT to be generated.  What do you consider "near" to you??  Some AI can be pretty far off, but yes, I do take your valid point as to the effect disappearing when you turn off the WT.  But again I need to ask, have you tried minimizing the effect by use of the slider??  And too, are you getting a normal turbulence effect with the WT off and the regular turbulence on??  What are you flying (out of curiosity as much as anything else)??  I see you are saying a GA type of airplane, but that sure covers a lot of ground (or sky I suppose).

 

I'm out of here for the day.  Hopefully someone who actually knows something will give you a hand.

Thanks woodhick for your help, I was mostly flying the realair lancair legacy when the turbulence was occurring and it was being thrown about like I have never seen in FSX. I might experiment with turning the WT back on with the sliders down near minimum like you suggest.

As you can see, I lied about signing off.  Morbid curiosity I guess.  Yeah the Legacy appears to be a very small and light airplane.  The WT is way over scale for--really--even the heavies.  I don't think anyone runs the slider over 5-10%.  Let me know how things work out for you.

 

Even at 10% my A2A J-3 Cub gets flipped upside down.  Not happy, not happy!!