Abstract The U.S. Navy had declared the submersible seaplane feasible and began funding experiments for its creation in 1964. The collection of notes from Charles Roe Tuttle, a San Diego based engineer, explain the feasibility of this craft, as well as give calculations to justify his stance. Tuttle’s writing “The Submarine and Airplane as an Integrated Vehicle” explains how the use of the German Midget Submarine body would be a better fit for this craft. Tuttle worked for Convair, who acquired the...