Hi,
I am trying to animate a helicopter model in vue infinite and rotating the helicopter blades at high speed is a problem,please can any one tell me how I can give a high rotating speed to heli blades while heli is moving in a straight linear path as well?
Also can I get a render in which scene looks really dynamic(like motion blur to both ground and rotor blades?)
Thanx for the help.

Use the spin function in the animation toolbox or the wizard pop-up.

In the object properties of the blades set animation to Basic. The wizard pops up. Click next until you see "Spin". Use Z axis for revolution and set the revolving speed as high as you want.
For best results use motion blur on blades.

You can change settings later in the animation toolbox (object properties or timeline).

Thats it!

Thanx I am going to try that out!

check tutorial #4 and adds on also
http://www.geekatplay.com/tutorials.php