IN 1937, up on the windy heights of the Yorkshire moors, British sportsman Frank Charles taught himself to fly in primitive gliders. He soon tired of their limited capabilities, and went in search of something that could actually soar instead of simply glide downhill. The best sailplanes of the day were being designed and built in Germany, so Charles asked a local firm, Slingsby Sailplanes Limited, to build an airplane based on German designs.
Between-the-wars British airplane manufacturers—de Havilland, Percival, Miles—had developed wood aircraft construction into a high art, and Slingsby continued the tradition by producing a beautifully proportioned wood glider. The long, tapered gull wings, the slender fuselage, even the canopy frame and landing skid were fashioned of bent and molded birch plywood. In the air, the expansive wings…
