An aeronautical engineer of the U. S. Navy Special Devices Center (Office of Naval Research) and a member of the Center’s Military Requirements Division, Lieutenant Vaeth participated in the development of new synthetic training equipment for naval aviation. During World War II, Lieutenant Vaeth served for four years with lighter-than-air commands. He is the author of the book Two Hundred Miles Up on high altitude rocket and balloon research and a contributor of articles on naval aviation to popular journals and the Encyclopaedia Britannica.