The Vietnam War proved the combat potential and capabilities of the modern helicopter. The combination of swiftly deployable attack helicopters, such as the AH-1G Cobra, and more robust transport aircraft in medical evacuation, fire support and fire suppression roles, allowed for a revision of battlefield tactics. This long-awaited revised edition of Simon Dunstan's classic reference work provides a comprehensive guide to the many models employed during the war and the tactics used. This title includes new data and photographs.