What happened
A red triangle hovered and turned for 15 seconds, then climbed for five minutes.
"one red triangle"Shape words from the Project Blue Book summary
Witnesses
Weather observer Airman Second Class R. A. Hill
Explanation
Unresolved
No explanation has been found.
Sources
- Patrick Gross, Project Blue Book unknowns of 1953ufologie.patrickgross.org
- The Black Vault, Project Blue Book unknown case files, complete listtheblackvault.com
Filed by Project Blue Book as unidentified.