I never saw any post from other users on the subject. So am I the only one ?When using the the default Learjet or Boeing or even some freeware like the BAE-146 the speed gauge first shows the speed then after a certain tile it shows zero and if the speed autopilot is engaged the throtles just go to the maximum and the plane goes in overspeed.Later during the flight the gauge returns to normal.Is there any correction I can do in the guage or panel cfg or A/C cfg ?

Disable ALL icing in your ASV options. You are getting "icing" which is why your airspeed is showing 0. Sometimes hitting shft-H will turn on the heaters and correct the issue but to eliminate it, just disable icing in ASV. I think it is in the last column on the right hand side...-PaulLiquid CooledAMD 4000 San Diego2 Gigs Kingston Corsair XMS CL2Dual 7800 GTX 24 inch widescreen dual 19 inch LCDRaid-0

>I never saw any post from other users on the subject. So am I>the only one ?>When using the the default Learjet or Boeing or even some>freeware like the BAE-146 the speed gauge first shows the>speed then after a certain tile it shows zero and if the speed>autopilot is engaged the throtles just go to the maximum and>the plane goes in overspeed.>Later during the flight the gauge returns to normal.>Is there any correction I can do in the guage or panel cfg or>A/C cfg ?>>A quick search for speed and zero gave me these and many more.http://forums.avsim.net/dcboard.php?az=sho...ing_type=searchhttp://forums.avsim.net/dcboard.php?az=sho...ing_type=searchhttp://forums.avsim.net/dcboard.php?az=sho...ing_type=searchhttp://forums.avsim.net/dcboard.php?az=sho...ing_type=searchYou need to turn on your pitot heat when operating at or near freezing temperatures and especially in clouds.

Paul and Zferh,I thought it was a FS bug. This makes sense. I prefer to use the correct procedures to avoid this problem than turning off the ASV options to ignore it.Thank you for your help. I will test it tomorrow.Today I ended up in the sea trying to land at Venizia airport. I was using for the first time the BAE-146 freeware from ANZ.

Also, don't forget to take the tennis ball off of the pitot tube during ground check.Thomas[a href=http://www.flyingscool.com/FC_StartJava.html] http://www.flyingscool.com/images/Signature.jpg [/a]I like using VC's :-)

Thomas,Thanks for the tip !!!!!!!!!!!