Waco E series

The Waco E series is a small family of American-built cabin biplanes built between 1939 and 1942, which differed primarily by engine installation. ==Development and design== The E series was the final development of the prewar Waco line of biplane designs. A full four-seater, it had the best performance of any of the Wacos. First flown in 1939, it...
Found on http://en.wikipedia.org/wiki/Waco_E_series
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