America's youth builds and flies model planes on miniature flying fields.Two American boys give their giant model plane a running start at Kelly Field in the city of San Antonio in the southwestern U.S. state of Texas where members of the Gas Model Club do their weekly flying. The plane, which weighs eleven pounds, has a thirteen feet (3.9 meters) wing spread, and a wing area of twenty-four square feet (2.2 square meters) The plane will not take off by itself, but with a running start flies very successfully.When the U.S. government in 1941 called on model plane builders to turn out 800,000 scale model airplanes for use by the U.S. Navy, the U.S. Army, and civilian defense groups to train military and civilian personnel to recognize hostile and friendly aircraft, it was estimated that there were nearly three million American youths actively interested in aero-modeling. These young model builders put their experience to practical use by turning out models of fighters, scouts, fighter bombers, bombers, torpedo carriers, and commercial planes of the United Nations and of the enemy