Confederate Air Force Tiger Squadron International meeting on radio aids tot marine navigation May 1946 Volume II; Radio navigation, radar and position fixing systems for use in marine navigation Anti-Tank Helicopters AH-1 Huey Cobra Mil Mi-24 Hind AH-64 Apache Westland Sea King UH-1 Iroquois/ AH-1 Hueycobra Guinnes Book of Helicopter fact and feats British Service Helicopters: a pictorial history Attack Helicopters
