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More About Those “Invisible UFOs” – This Time in the USA

In my previous article on “Invisible UFOs,” I discussed three cases from the U.K., and all from the 1950s. It’s now time to take a look at a very similar case from the United States and also occurred in the 1950s. The documentation on this intriguing story can be found in the UFO section of the FBI’s website, The Vault. With that all said, let’s now take a look at the case itself.  It all goes back to 1951 and strange, aerial activity that occurred in the vicinity of a military installation, Fort Monmouth, New Jersey. The documentation on the incident starts as follows: “On September 20, Andrew J. Reid G-2 [Army Intelligence] Ft. Monmouth, NJ, provided following report of unconventional aircraft observed by radar at above Army installation. On Sept 10, fifty one], an AN/MPG-1 radar set picked up a fast moving low flying target, exact altitude undetermined at approximately 11:10 a.m., southeast of Ft. Monmouth at a range of about twelve thousand yards. The target appeared to approximately follow the coast line, changing its range only slightly but changing its azimuth rapidly. The radar set was set to full aided azimuth tracking which normally is fast enough to track jet aircraft, but in this case was too slow to be resorted to. Target was lost in the N.E. at a range of about fourteen thousand yards.”

Matters had barely begun, however, as the following extract from the official papers reveals: “This target also presented an unusually strong return for aircraft[,] being comparable in strength to that usually received from a coastal ship [italics mine]. The operator initially identified target as a ship and then realized that it could not be a ship after he observed its extreme speed. September 10, fifty one  an SCR-584 radar set, at 3:15p.m., tracking a target which moved about slowly in azimuth north of Ft. Monmouth at a range of about 42,000 yards at extremely unusual elevation angle.”

Notably, the movements of the vast craft  were also picked up by another radar expert: “Both sets found it impossible to track the target in range due to it speed and the operators had to resort to manual range tracking in order to hold the target. The target was tracked in this manner to the maximum tracking range of 32,000 yards. The operator said the target to be moving at a speed several hundred mph higher than the maximum aided tracking ability of the radar sets. The target provided an extremely strong return echo at times even though it was the maximum range. However, echo signal occasionally fell off to a level below normal return. These changes coincided with maneuvers of the target.”

There was more amazing activity to come: “On September 11, fifty one [sic] at about 1:30 p.m. the target was picked up on an SCR-584 radar set that displayed unusual maneuverability. Target was approximately over Navesink, NJ, as indicated by his 10,000 range, 6,000 feet altitude and due north azimuth. The target remained practically stationary on the scope and appeared to be hovering [italics mine]. The operator looked out of the vehicle housing the radar in an attempt to see the target, since it was at such a short range, however, overcast conditions prevented such observation.”

And we have this incredible data from the base’s staff: “Returning to their operating position the target was observed to be changing in elevation at an extremely rapid rate, but change in range was so slow the operator believed the target must have risen nearly vertically [italics mine]…Once again the speed of the target exceeded the tracking ability of the SCR-584 set so that manual tracking became necessary…The weather was fair when the observation was made September 10th and cloudy for the September 11th report.”

Truly, a fascinating and amazing early encounter of the UFO kind. And of the invisible type, too.

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Nick Redfern works full time as a writer, lecturer, and journalist. He writes about a wide range of unsolved mysteries, including Bigfoot, UFOs, the Loch Ness Monster, alien encounters, and government conspiracies. Nick has written 41 books, writes for Mysterious Universe and has appeared on numerous television shows on the The History Channel, National Geographic Channel and SyFy Channel.
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