Product Description: First designed and published in American Modeler, 1973, the Bristol Scout D was built at a scale of 2" = 1' with a symmetrical airfoil. It has since been reduced and built at a scale of 1 1/8" = 1' and is a wonderfully acrobatic flier with an .060 diesel power plant. Kit #405 Wing span: 28 1/2" Engine: .049 - .090 cu. in. disp. Radio control: 4 channel