| In
            1961, the prototype Model 336 Skymaster was first
            flown.  Cessna had chosen a push-pull twin engine design to
            eliminate asymmetrical thrust in the event of an engine failure
            resulting in an easier aircraft to fly.
             In 1965, Cessna introduced the Model 337 Super
            Skymaster with retractable landing  
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              gear.  This aircraft was
            ordered by the U.S. Air Force "off the shelf" in 1967 as a
            forward air controller (FAC).  In this role, the O-2A
            Skymaster was modified to carry flares, rockets and light
            ordinance. 
            The O-2 was also known as the "Oscar Deuce".  |