Sunday, 11 June 2017

UFO Case Directory (RADCAT):
“Category 9, RADAR
Clusters of Small Targets & One Large Target
July 29, 1952
Osceola, Wisconsin”


The whole UFO case report:
Brad Sparks:
July 29, 1952; Osceola, Wisc. (BBU 1731)
1:30 a.m. Radar operators on ground and pilot of F-51 Mustang in flight. Several clusters of up to 10 small radar targets and one large target. Small targets moved from SW to E at 50-60 knots (60-70 mph), following each other. Large target moved at 600 knots (700 mph). Pilot confirmed one target. 1 hr. Summary says photos were taken. (Berliner)” presents U.S. government (U.S. Air Force) documents that pertain to the UFO case.

Related post:

Satellite photo of Osceola, Wisconsin (
( photo)

U.S. Government UFO Document:
“File 1731
July 29, 1952
Osceola, Wisconsin
11 photos”

(Project Blue Book, U.S. Air Force, Washington, D.C.)

Source:, Lindon, Utah

The file contains 11 U.S. Air Force radar photos of a large UFO which manoeuvres over Osceola, Wisconsin, on 29 July 1952.

This case is a listed as a Project Blue Book ‘unknown’ or ‘unidentified.’

( image)

Satellite photo of Osceola, Wisconsin (
( photo)