π Overview
At the dawn of July 24, 1948 around 02:45, over the southeastern U.S. (near Montgomery, Alabama), Eastern Air Lines pilot Clarence Chiles and co-pilot Donald Whitted had a close encounter (~700 feet distance) with a massive cigar-shaped luminous craft. This case was the key trigger for USAF Project Sign's 1948-08 'Estimate of the Situation' (extraterrestrial hypothesis) report.
π Incident Timeline
02:45 (1948-07-24):
- DC-3 aircraft (Eastern Air Lines, Houston β Atlanta route)
- Cruising at 5,000 ft (near Montgomery, AL)
- Chiles + Whitted simultaneously observed huge light from the right
- Immediate evasive maneuver to the right
Craft description:
- Length ~100 ft, diameter ~25 ft (Chiles estimate)
- Cigar/rocket shape
- 2 rows of rectangular windows on the side (orange glow)
- Blue/blue exhaust at the rear
- Passed at ~700 feet distance
π USAF Project Sign Handling
1948-07-25 immediate investigation:
- Pilot interviews + media analysis
- Conclusion: difficult to explain by natural phenomena
1948-08 'Estimate of the Situation':
- Report drafted by Project Sign
- "Observed UFOs may be of extraterrestrial origin"
- Key evidence: Chiles-Whitted + Mantell + other 1947-48 cases
Vandenberg's rejection:
- Air Force Chief of Staff Hoyt Vandenberg rejected the report
- Cited "insufficient evidence"
- Report destroyed (most copies)
- 1948-12 Project Sign β Project Grudge (skepticism reinforced)
πΊ Significance
- Key trigger for USAF's 1948-08 extraterrestrial hypothesis report
- 1947 Arnold + 1947 Roswell + 1948 Mantell + 1948 Chiles-Whitted = 1947-48 U.S. UFO Big Four
- Starting point of policy change: Project Sign β Project Grudge β Project Blue Book
- Prototype of cigar-shaped UFO depiction

