Air Sea Rescue, B/W Circa 1940s, WWII, “Air-Sea Rescue NMT Training Film WWII”, “Specific ditching procedures and emergency equipment installations have been outlined definitely for each type of aircraft. Airmen should thoroughly familiarize themselves with the specifications for their own plane, keeping in mind that the general purpose is the same, and that equipment varies only in location and amount, depending on the structure of the plane and the number of perosns carried.”