Military1952

Silver sphere photographed from a U.S. carrier during Operation Mainbrace

When: 20 Sep 1952
Sources: 1 public source

Photographed from the carrier USS Franklin D. Roosevelt during Operation Mainbrace on the day of the sighting AFC J.J. Swartz, U.S. Navy, Public domain, via Wikimedia Commons

During the NATO exercise Mainbrace, a U.S. reporter aboard a carrier in the North Sea photographed a silver sphere that pilots and deck crew were watching. Naval Intelligence found no ship that had launched a balloon, and witnesses split over whether it was one.

Sources

FirsthandThe Report on Unidentified Flying Objects (Edward J. Ruppelt, 1956) (opens in a new tab)Project Gutenberg / 1956

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Where it fits

Earlier in MilitaryRAF Topcliffe sighting during Exercise MainbraceSep 1952 Later in MilitaryAir Defense Command's 4602nd AISS takes on UFO field investigations1953

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