In 1968, Bob Hunt began experimenting with foam wing cutting, eventually becoming one of the world's most acknowledged and accomplished at the art. He liked the inherent and easy-to-achieve accuracy that a properly cut and covered foam wing virtually assured. He didn't like the weight of the foam wing, however, with all the excess sheeting and glue that was required.
Bob began thinking about a wing building system that would take advantage of the accuracy of the foam cradle pieces which are just as accurate negative airfoil shapes as the foam cores are positive airfoil shapes.

He devised a system in which the foam wing blanks are marked for desired rib positions for a built-up wing, prior to being cut into a wing shape. Once the core was cut, the rib positions could be marked accurately onto it and labeled, and they could also be marked and labeled in the lower cradle section.
The core could then be cut up into extremely accurate rib stations to be used as templates for generating equally accurate balsa ribs. An absolutely perfect built-up representation of the original foam core shape could then be assembled in the lower cradle half, which was now a form-fitting building fixture.

Bob first tried this process in 1993, and the very first wing built in the system was absolutely accurate in every respect. That wing was built for Bob’s Tucker Special, which went on to win the Vintage Stunt Championships. Its wing was light, strong and true!
Since that time, Bob has been constantly developing and improving his lost-foam wing building system, incorporating many unique innovations and ever more accuracy-insuring techniques. It’s success is evident by the large number of top aerobatic champions who have chosen lost-foam as their preferred wing building method. Now you can join them in that success!
Running time 117 minutes.
Lost Foam Building System (2 DVD set)$39.95

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