Flying then became one of his favourite recreational activities .
Sutherland had been taught to fly in 1940 by US Army Air Corps instructors at the Philippine Army Training Center and had been awarded a civil pilot 's licence by the Civil Aeronautics Association .
Flying then became one of Sutherland 's favourite recreational activities .
Sutherland had been taught to fly in 1940 by US Army Air Corps instructors at the Philippine Army Training Center and had been awarded a civil pilot 's licence by the Civil Aeronautics Association .