Operational History
Shortly after production began, the OH-6 began to demonstrate what kind of an impact it would have on the world of helicopters. The OH-6 set 23 world records for helicopters in 1966 for speed, endurance and time to climb. On 23 March 1966, Jack Schwiebold set the closed circuit distance record in a YOH-6A at Edwards Air Force Base, California. He flew without landing for 1,739.96 mi (2,800.20 km). Subsequently, on 7 April 1966, Robert Ferry set the long distance world record for helicopters. He flew from Culver City, California to Ormond Beach, Florida, covering a total of 1,923.08 nm (2,213.04 mi, 3,561.55 km).
In 1964 the US Department of Defense issued a memorandum directing that all US Army fixed-wing aircraft be transferred to the US Air Force, while the US Army transitioned to rotor-wing aircraft. The US Army's fixed wing airplane, the O-1 Bird Dog, which was utilized for artillery observation and reconnaissance, would be replaced by the OH-6A helicopter. The aircraft entered service in 1966, arriving in the Vietnam War thereafter. The pilots dubbed the new helicopter Loach, a word created by pronunciation of the acronym of the program that spawned the aircraft, LOH (light observation helicopter).
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