Group /Category 9 Radar Cases

Updated: 11-16-06
Francis Ridge:
An Aircraft Control and Warning Station in Michigan, July 29, 1952, reported an extremely important case: Ground Control Intercept tracked UFO by radar, target speed 550 knots. Chased by F-94s; one got a radar lock-on; bright flashing light seen at the same time, same position. Although numerous incidents involve clearer, closer encounters, this was one that convinced a lot of people simply because of what the UFO apparently did. (See Digesting the Data below) This was item # 17 on the Chop clearance list. Surprisingly, the case is not listed among the Blue Book "unknowns", but there were no less than six "unknowns" on that very day. Two days prior to this was the Selfridge ADC attempted intercept mission.  Less than a week later, the Port Huron case was upgraded to SECRET.

Capt. Edward J. Ruppelt:
......  less than six hours after the ladies and gentlemen of the press said "Thank you" to General Samford for his press conference, and before the UFO's could read the newspapers and find out that they were natural phenomena, one of them came down across the Canadian border into Michigan. The incident that occurred that night was one of those that even the most ardent skeptic would have difficulty explaining. I've heard a lot of them try and I've heard them all fail. (RUFOS, 171)

Our thanks to Richard Hall and Todd Lemire for the supporting documents provided in October 2003.