There's a small config change that occurred which seriously screws with people trying to pilot helicopters in first person. You can see it here when I exceed about 30kph:
This involuntary zooming screws with a pilots perception of airspeed and dimensionality. I don't think it's intended behavior. I made a small config change to fix this, which you can see in my post over here:
It's just a matter of setting the default speedZoomMaxFOV value for class ViewPilot for all helicopters to be 1.0 as opposed to the now-default 0.75.