Indonesian Air Force Brigadier General Discloses Repeated F-16 UAP Radar Contacts

On October 15, 2023, at the BETA UFO Indonesia Conference held at the National Library of Indonesia (Perpustakaan Nasional Republik Indonesia) in Jakarta, Marsekal Pertama (First Marshal, equivalent to Brigadier General) Fajar Adriyanto made a public disclosure that stands as one of the most significant military UAP admissions in Southeast Asian history.

Adrianto holds an estimated 3,000 logged flight hours in the F-16 Fighting Falcon and has served at the level of Asisten Potensi Dirgantara (Assistant for Aerospace Potential) at the National Air Operations Command (Komando Operasi Udara Nasional, or Koopsudnas). He is also notable as the pilot involved in a well-documented 2003 interception of a US F/A-18 aircraft that had strayed into Indonesian airspace over Bawean Island — a real-world intercept that establishes his direct experience distinguishing conventional aircraft from anomalous contacts.

Pesawat tempur F-16 TNI AU beberapa kali melakukan kontak radar dengan objek yang tidak dapat diidentifikasi di tiga wilayah utama: pantai selatan Pulau Jawa, Laut China Selatan di utara Kepulauan Natuna, dan wilayah Biak di Papua. (Indonesian Air Force F-16 fighters made repeated radar contact with unidentified objects in three primary areas: the southern coast of Java, the South China Sea north of the Natuna Islands, and the Biak region of Papua.)

Adriyanto described a consistent pattern across multiple encounters. The unidentified objects initially appeared on radar moving slowly — too slowly for conventional aircraft identification. When an F-16 was vectored toward the contact and closed to within approximately five kilometers, the object disappeared from both the HUD (Head Up Display) targeting system and from the naked eye — becoming optically and electronically invisible simultaneously. This dual-mode disappearance, occurring at a defined distance threshold rather than gradually, is notable.

Upon the F-16 breaking off the intercept and turning away, the object would reappear on radar and then execute what Adriyanto described as a departure acceleration to approximately 5,000 km/h — roughly Mach 4 to Mach 5 at altitude. The F-16's maximum speed is approximately Mach 2. This departure speed, if accurate, places the objects in a performance category that no publicly known aircraft — manned or unmanned — can match.

Adrianto's disclosure occurred in a personal capacity rather than as an official TNI-AU institutional statement. However, his rank, his operational role at the National Air Operations Command, and his documented intercept experience lend his account a credibility substantially above civilian witness testimony. The BETA UFO Indonesia Conference — organized by Indonesia's largest and most methodologically rigorous UAP research organization — provided an institutional context for the disclosure, and the event was attended by journalists and members of the Indonesian scientific and aviation community.