April 7, 2006 4:06 PM Subscribe
I snapped this picture of a plane on a typical approach for landing at Dallas-Fort Worth airport. Upon closer inspection, I noticed a small propellor deployed under the plane. Googling taught me its a ram air turbine that is used for emergency power during a hydraulic/electrical failure. Does anybody know if its used under normal conditions, or did a happen to snap a picture of a plane during an (unpublicized) emergency landing?