I have a propeller animation with scale rate defined as 2. I would like to change the rate of this animation so that the propeller start at idle, and it will rotate faster as the rpm goes higher. I tried implementing this with blend space 1d, x axis defined as rpm and idle animation placed at bottom while the rotation animation at the top. The problem with this setup is the rotation animation does not blend well with idle animation, at lower x values rotation animation just makes a quarter rotation and loops back.
I have not used animation montages yet but I think this behavious is not achievable by blend space 1d. Any ideas?