Coyne Helicopter Incident (1973, Ohio)

📅 Overview

On October 18, 1973, at 22:30, over Ohio, U.S. Army National Guard UH-1H Huey helicopter had a ~5-minute close encounter with an unidentified aerial object. Witnesses include pilot Captain Lawrence Coyne + co-pilot + crew (4 total). The helicopter experienced temporary lift loss + magnetic compass anomaly — making this one of the best-documented military UFO cases with physical evidence.

🔍 Incident Timeline

22:30 EST:

• Capt. Coyne + Lt. Arrigo Jezzi (co-pilot) + Sgt. John Healey + Sgt. Robert Yanacsek
• Cleveland → Columbus night flight (UH-1H helicopter)
• Cruising at 1,500 ft over Mansfield, Ohio

Encounter:

• Red luminous object approached from right
• Coyne initiated collision avoidance dive (2,000→1,500→600 ft estimated)
• Despite this, helicopter unexpectedly climbed (collective pitch unrelated)
• Followed for ~5 minutes
• Object appearance: cigar-shaped, metallic, red + green + white lights
• Accelerated away and disappeared

Physical evidence:

• Permanent damage to magnetic compass — required later repair
• Self-climbing helicopter = inexplicable lift change

🛂 U.S. Military Handling

• Post-Project Blue Book era (1969 closure)
• U.S. Army internal report — limited public statements
• 1976 J. Allen Hynek (Project Blue Book consultant) interviewed witnesses
• Crew testimony consistency over time made single hallucination unlikely

📺 Significance

• One of the best-documented military UFO encounters with physical evidence
• 4-witness consistency + helicopter damage + compass anomaly = multilayered evidence
• Part of 1973 "Year of the Humanoid" UFO activity peak
• Referenced extensively in UFO documentaries