Expediente — Avistamiento en Bardenas Reales, Navarra (2 January 1975)

Brief

Expediente 750102 is a declassified case file from the Ejército del Aire covering a UAP sighting at the Bardenas Reales bombing and gunnery range on 2 January 1975. The case involved multiple ground witnesses present during active live-fire training — an operationally significant context that places trained, duty-bound observers at the scene with clear sightlines and institutional reporting obligations. The file spans approximately 30 pages at ~45 MB; only the administrative cover sheet carries machine-readable text, with the remainder consisting of scanned imagery. Custody was held by the Biblioteca Central del Ejército del Aire (BCEA) at the Cuartel General in Madrid before declassification and subsequent mirroring on the Internet Archive via Spain's Biblioteca Virtual de Defensa.

Metadata

Agency

Ejército del Aire / Ministerio de Defensa

Release

1975-01-02

Type

PDF • .pdf

Length

30 pages

Programs

Expedientes OVNI

Tags

Bardenas Reales, live-fire range, ground witnesses, 1975, Spain, Navarra, Expediente 750102

Key points

• Expediente number 750102 — the Spanish Air Force's internal identifier for this case, filed under the formal category 'Avistamiento de Fenómenos Extraños (Expedientes OVNI)'.p.1
• Sighting location: Bardenas Reales, Navarra — an active military firing range, placing witnesses in a restricted, operationally controlled environment at the time of the event.p.1
• Date of sighting: 2 January 1975.p.1
• Multiple ground witnesses were present on the active live-fire training ground at the time of the sighting, per the release description.p.1
• The file runs ~45 MB across approximately 30 pages; 29 of 30 pages are image-only scans with no extractable text, indicating handwritten or typewritten original documents rather than native digital records.p.1
• Institutional custody: Biblioteca Central del Ejército del Aire (BCEA), Cuartel General del Ejército del Aire, Romero Robledo 8, 28071 Madrid — contact channels listed on the cover sheet.p.1

Most interesting

• The Spanish Air Force maintained a formal expediente classification system for UAP cases — 'Expedientes OVNI' — indicating an institutionalized approach to the phenomenon rather than ad hoc unit-level reporting.
• Bardenas Reales is a semi-desert plateau in Navarra that has served as a Spanish military bombing and gunnery range for decades, providing unobstructed sightlines and a pool of observers with aircraft recognition training.
• Active live-fire training at the time of the sighting means witnesses were on-station, alert, and subject to military reporting discipline — conditions that elevate the evidentiary weight of any UAP report.
• The file's ~45 MB size across approximately 30 pages implies high-resolution scanning of physical documents — likely including photographs, diagrams, or investigative forms — none of which survived to machine-readable text in this release.
• The case was archived by the BCEA in Madrid before Spain's Ministry of Defence released the full Expedientes OVNI collection via Biblioteca Virtual de Defensa; the Internet Archive copy is the accessible mirror.