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The Johnson-McConnell agreement of 1966 was an agreement between United States Army Chief of Staff General Harold K. Johnson and United States Air Force Chief of Staff General John P. McConnell on 6 April 1966. The U.S. Army agreed to give up its fixed-wing tactical airlift aircraft, while the U.S. Air Force relinquished its claim to most forms of rotary wing aircraft. The most immediate effect was the transfer of Army DHC-4 Caribou aircraft to the Air Force. ==Background== The value of tactical air transport had been demonstrated in World War II, proving especially valuable in mountainous and jungle regions of the China-Burma-India and Southwest Pacific theaters. In the 1950s, U.S. Air Force recognized this, and emphasised centralized management and control of airlift resources. At the same time, Army theorists considered the possibility of employing aircraft in the traditional roles of cavalry. In the Army's concept, aircraft were responsible to and under the command of the ground commanders. From the Air Force perspective, By 1960, the U.S. Army had 5,500 aircraft, and planned to acquire over 250 CV-2 Caribou aircraft〔 (de Havilland Canada DHC-4 Caribou). The Army's 1962 Howze Board strongly endorsed the airmobility concept, calling for the creation of air assault divisions equipped with organic aircraft, supported by air transport brigades equipped with heavy helicopters and Caribou transports. To the Air Force, this sounded suspiciously like the Army creating a tactical air force of its own. The U.S. Air Force opposed the introduction of Caribou aircraft to Vietnam, arguing that the C-123 Provider could carry twice the payload over three times the distance. However, the difference between the two aircraft narrowed under operational conditions, since fuel had to be traded off against payload, and the C-123 required of runway for take-off, as opposed to the Caribou's . Once in Vietnam, the Caribou's ability to operate into short, unimproved strips soon proved its worth. Starting in July 1962, Caribous began flying two or three sorties per day into Lao Bao a remote camp that was inaccessible to C-123s. By the end of 1965, there were 88 Caribou aircraft in Vietnam, and the Army was considering a proposal to procure 120 CV-7 Buffalo aircraft – something the Air Force viewed as a costly duplication of the C-123. In 1966, the U.S. Air Force began to deploy CH-3 helicopters to Vietnam, on the "informal understanding" that "the Air Force would not attempt to deliver supplies to the Army by helicopter" but "critical shortages of Chinooks temporarily ended doctrinal rigidity". Air Force helicopters found themselves employed on a variety of tasks requiring heavy helicopters beyond their intended role in special air warfare.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Johnson-McConnell agreement of 1966」の詳細全文を読む スポンサード リンク
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