ENVELOPE 2 - 1971: DOCUMENTOS DA DÉCADA DE 1960

This document, titled 'Envelope 2 - 1971', is a compilation of reports and documents concerning Unidentified Aerial Phenomena (UAP) in Brazil, spanning from the 1950s to 1971. It includes official military correspondence, press clippings, and personal witness reports. The file contains detailed accounts of sightings, such as the 1967 incident in Belo Horizonte where a witness reported a mushroom-shaped object and entities, and a 1954 sighting in Guaratinguetá involving a disc-shaped object. The document also includes technical materials from the CICOANI (Centro de Investigação Civil de Objetos Aéreos Não Identificados) project, which provided guidelines for investigating and measuring UAP sightings, including charts for estimating the size and distance of objects. The reports highlight the military's interest in these phenomena, with various commands within the Brazilian Air Force (FAB) documenting and investigating these events. The compilation serves as an archival record of the government's efforts to collect and analyze UAP data during this period.