The SA 321 has filled nearly all types of missions that Navy or Air Forces may designate to a rotary wing: anti submarine operations, logistical transport, marine salvage, rescue and combat missions in support of special commandos. For this purpose, it has been selected by several countries and has played for the Israeli armed forces, South Africa, Libya, China and Iraq. This book presents its genesis, its development, commissioning as well as the characteristics and technical and operational capabilities of all its civil and military versions, French and foreign. The various uses of “Super” are described together with its Chinese copies, the Z-8 and the latest AC 313. The book also traces the history of units that have used and, for each country, lists the units delivered and their current situation. 430 photos, 3 colour profiles, drawings. French text and captions.