Lu,
Baque Flip has amplified what I sent you on e-mail regarding our thinking on precession versus aerodynamic forces causing phase lag.
Grey Area - you stated earlier that the pitch roll couple on the Lynx could be demonstrated to occur in different directions depending the Density Altituded. This might have been true with metal blades but the CMRBs only go one way - pitch up=roll right. As phase lag reduces with increase of DA you cannot achieve a reversal in this. Equally the negative DA required to increase the phase lag by the appropriate amount would be impossible to find even over the dead sea in the middle of winter.
[This message has been edited by
[email protected] (edited 20 December 2000).]