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The first of the long line of cabin biplanes produced by the Waco Company was the QDC.The first of the long line of cabin biplanes produced by the Waco Company was the QDC. Little more than an enclosed version of the Waco F-2, the airplane did feature dual side-by-side controls in the front seats, and a four-place seating capacity. The unique feature found on the QDC was its large wrap-around rear windows. These windows, combined with an overhead skylight, gave the QDC excellent visibility for a cabin biplane. Compared to the later Waco Cabins, the QDC is very light in weight and, with generous wing area, the airplane is quite impressive in the short field take-off department. There are two examples of the type that belong to long-time airshow and fly-in enthusiasts, and they are commonly displayed around the country each summer. Looking at this airplane and the E series Cabin Customs that were the last of the line, it’s hard to believe that they are even related.

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