Free Flight Sport
By Don DeLoach | ddeloach@comcast.net
As seen in the April 2023 issue of Model Aviation.
IN THE LATE 1930S, French modelers realized that a smaller, more compact Rubber class was needed for compact flying sites in France. They developed a simple Rubber model formula: 100-grams minimum airframe weight; 10-grams maximum rubber weight; 20 square cm of fuselage cross-sectional area; and models must rise-off-ground (ROG). They dubbed the event Coupe d’Hiver, or Winter Cup.
The first Coupe competition was held in France in 1945 and was an immediate success…