Letter from Michael von Saint-Obyn, Newport, Kentucky, United States to WSC, on German air expansion. Stating that the Germans were "working feverishly" to bring out a more formidable military aircraft, powered by a gas turbine engine. Also on their use of light magnesium alloys for the instruction of aircraft and weapons. "The next war will be decided in the air but it will not be done by the number of planes engaged, but by the size, speed, and silence of those in operation".