Jump to content

Yaw axis instability


TonyS
 Share

Recommended Posts

Hi everyone,
Anyone experienced a kind of  wild 'head-shaking' along the yaw axis of certain models (mainly the jet types) when using a Phoenix flight sim?
I'm curious as to whether this is simply a peculiarity of the physics of the sim or whether this really happens on models under certain circumstances.
I've just had it happen on the Sukhoi Park Flyer  - electric model sim.
 
On a slightly different matter connected to the Phoenix flight sim and helis....Anyone know how to tame the controls on the Phoenix to make the helis less wild and easier to control? Several hours of practicing and I still can't hover the T Rex 450 for more than a few seconds without having to make fairly wild corrections.
 
Thanks.
Link to comment
Share on other sites

I generaly only see this when I have exceeded the VNE of a model that has been drastically overpowered..  It does seem easy to provoke this reaction in Phoenix but then I have never been brave enough to fly a real model with a 5:1 power to weight ratio!
Link to comment
Share on other sites

I thought it was called Dutch rolling but it is a characteristic particularly of swept wing designs where the combination of the normal roll and yaw stability tends not to be fully self damping.
 
Most airliners have automatic roll dampers to eliminate it as if left unchecked it can make the passengers pretty sick!
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...