FSX-MS Default FSX jets shaking

[scianoir 610]

I have just noticed that if I fly the default 737-800, Lear Jet 45 or CRJ-700 above about 250kts at any altitude, the aircraft start to shake violently as one might experience in either a stall or overspeed situation. This does not occur with the default 747-400 or F/A-18 or any of my addon jet aircraft of which I have a large number operational in FSX.

I guess I have not noticed this before as I very rarely fly any of the default FSX aircraft, other than for occasional test purposes to evaluate frame rates with a new addon airport. Although I rarely fly default, having noticed this I would now like to solve the issue, as problems tend to irritate me, and any help would be appreciated!

 

Bill

[PIC007 82]

Sounds like approaching a stall, do you have your sim set to TAS instead of IAS?

 

Settings/Realism

[scianoir 610]

Sounds like approaching a stall, do you have your sim set to TAS instead of IAS?

 

Settings/Realism

Thanks Jay. I have already checked the realism settings and I can confirm that the sim is set to IAS.

 

Yes, it does seem like the sort of juddering you get approaching a stall but this happens when the aircraft is accelerating beyond about 250kts, well above stalling speed and in level flight, not in any high speed stall inducing attitude.

 

Bill

[scianoir 610]

I guess this may be in some way related to some parameter in the aircraft cfg. Does anyone know what I should be looking at in the cfg which might be giving rise to this problem?

 

Bill

[PIC007 82]

If it is happening with some default planes but not others I'm lost. I'm sure you have already checked that the plane is 'clean', flaps-slats-spoilers, gear

 

Can you take a screen shot of the 2D cockpit when it happens?

 

Just had another thought, you dont happen to have "Accu Feel' installed do you?

Edited December 30, 2014 by PIC007

[scianoir 610]

Just had another thought, you dont happen to have "Accu Feel' installed do you

 

Great afterthought Jay - I do have Accu Feel installed and it was the problem! I found that the Vne speeds for these 3 aircraft was set far too low within Accu Feel, which is odd as I don't think I ever bothered configuring Accu Feel for these 3 aircraft, because as I said previously, I very rarely fly the default aircraft!

 

I must admit that when I was puzzling over this problem, I didn't consider Accu Feel at all, so many thanks for your help in providing a solution!

 

Bill

[PIC007 82]

Mystery solved! I had a flashback to when I first installed AF, had a lot of planes hitting a high speed buffet too, glad ya got it sorted!