10/18/73 - Coyne, Flight Crew, Independent Witnesses, 10:30 PM

Report Summary	Captain Lawrence Coyne and the crew of a helicopter flying at 2,500 feet spotted a red light which appeared to approach on a collision course. Evasive action was taken and the helicopter dropped to 1,500 feet. The approaching object seemed to stop momentarily about 500 feet overhead then banked to one side. The object was cigar shaped with a red light on its leading edge. A green light emitted from the rear filled the helicopter cabin with a green glow. The pilot glanced at the altimeter and noticed that the helicopter had risen to 3,800 feet. None of the crew had felt the gravitational pull normally experienced when a helicopter rises. A bounce was then felt and the object was seen to take off to the right. BUFORA Vehicle Interference Catalog
Hynek Classification	CE-II
Original Vallee Classification	Type I
Current Vallee Classification	CE2
Minimum Distance	500 feet
Object Appearance	Cigar with red and green light emitting beam. Dome or canopy on top. Metallic grey. 50-60 feet in length.
Object Behavior	Paralleled helicopter, turned to cross flight path, exerted a force on the helicopter while climbing, departed.
Physical Effect	Force lifted helicopter even while flight controls in descent position.
Medical Effect	None
Comments / Conclusion	With highly qualified witnesses, and separate ground witnesses, coupled with the occasionally reported "force-field" effect, this is an important modern CE-II.