This is the story of the Continental A-40, the gutsy little engine which revived the struggling aviation industry during the Great Depression. Born out of a desperate necessity in 1930, it powered over a dozen lightplane models of that era. The book details each of these planes including the E-2 Cub, the Taylorcraft A and the Rose Parrakeet. Selling for half the price, ($400), of most competitors, and operating for pennies an hour, it enabled thousands to learn flying at minimum cost. Years later, its descendant the A-65 would power a host of CPT trainers, and later military planes such as the L-2, L-3 and L-4.