Project 10073 Record Card and Intelligence Report — Porto Alegre, Brazil, December 1954

This intelligence report, originating from the Air Attaché in Rio de Janeiro, details various sightings of unidentified aerial phenomena in Brazil, spanning from historical accounts in 1876 to contemporary reports in 1954. The primary source is a Brazilian Air Force (FAB) major described as highly intelligent and observant. The report details a specific sighting at Gravatai Air Base where 150 personnel observed two objects. The major conducted a controlled observation by placing airmen on opposite sides of a hangar and using a triangular arrangement of observers around the field. These observers reported objects hovering between 30,000 and 45,000 feet, which exhibited undulating movement and sudden, high-speed travel estimated at 8,000 mph. The objects were described as having a white glow that increased in size during movement. The report also references historical records, including an 1876 account from a farmer in Mato Grosso describing a 90-foot diameter metal disk with a retractable turret. Furthermore, the document includes a separate account from November 4, 1954, near the Pardo River, where a witness named Jose Alves observed a disk-shaped object land. Three small beings in white clothing and skull caps emerged to collect botanical samples and river water before the craft departed vertically and silently. The reporting officer, initially skeptical, concludes that while many reports are unreliable, there is a core of credible observations that defy conventional explanation and exceed the capabilities of current technical evaluation.