Pilot's side door?

[skymstr02]

Originally Posted by hharney

The O2 door on the military version had a crank out window on the right side and could open up 90 degrees of the door at any speed. That would be cool, no pun intended.

And there is a spoiler attached to the cabin door on the O-2A to keep the slipstream from dumping in the cabin with the window full open. This allows a photographer to use a camera without the lens getting too much load on it.