During World War II he trained service cadets, lectured to Royal Air Force navigators and devised relief-model techniques for briefing commandos. Author of "Astrographics: First Steps in Navigation by the Stars", the 2 editions in 1942 were important works for the R.A.F.
During World War II, he trained service cadets, lectured to Royal Air Force navigators, and developed techniques for briefing commandos. Author of "Astrographics: First Steps in Navigation by the Stars", the 2 editions in 1942 were significant works for the R.A.F.