- What is Caso Barra da Tijuca 1952, Envelope 01?
- Brazilian Air Force technical envelope reconstructing the May 7, 1952 Barra da Tijuca disc photographs by Ed Keffel, with trajectory geometry, distance estimates, and probe-track analysis from the Colonel João Adil de Oliveira team.
- What does Caso Barra da Tijuca 1952, Envelope 01 reveal?
- First-photo caption frames the object as DC-3-like in apparent size but flying laterally. Photographs 2 and 3 are annotated for black-and-white 'sondas' and trajectory streaks visible only in enlargement. Photograph 5 is logged at 3,000 m range with a vertical streak passing through the object and a clearly visible white 'sonda'.
- Which agency produced Caso Barra da Tijuca 1952, Envelope 01?
- Caso Barra da Tijuca 1952, Envelope 01 is a primary-source record from Força Aérea Brasileira / Arquivo Nacional.
- When is Caso Barra da Tijuca 1952, Envelope 01 dated?
- Caso Barra da Tijuca 1952, Envelope 01 is dated 1952-05-07.
- What programs and topics appear in Caso Barra da Tijuca 1952, Envelope 01?
- Caso Barra da Tijuca 1952, Envelope 01 references disc, photographic case, Barra da Tijuca, Rio de Janeiro, Brazil and FAB.
- What does Caso Barra da Tijuca 1952, Envelope 01 say, in its own words?
- "1ª FOTO, Parecia um DC-3 Só que voava lateralmente.." (source p. 1).