Embraer R-99

The Embraer R‑99 is a family of Brazilian‑made airborne early‑warning and surveillance aircraft derived from the Embraer 145 regional jet. Developed in the early 2000s by Embraer in partnership with the Brazilian Air Force, the first prototype flew in 2001 and entered service in 2004. The platform carries a range of mission systems, most notably the ELIXIR radar, a phased‑array antenna mounted on top of the fuselage that provides 360‑degree coverage and can track up to 150 targets simultaneously at ranges exceeding 200 km. Variants such as the R‑99A (AEW&C), R‑99B (signals intelligence) and R‑99C (electronic warfare) share the same airframe but are equipped with specialised suites for radar, ELINT or EC‑M roles. The aircraft’s high‑wing, twin‑engine design offers a cruise speed of Mach 0.78, a service ceiling above 40 000 ft and a 4‑hour endurance, enabling long‑duration missions over national airspace and maritime zones. Its relatively low acquisition and operating cost, combined with modern digital avionics, have made the R‑99 attractive to several countries, including Brazil, Greece, Mexico and Thailand. The R‑99’s success demonstrates how a commercial regional jet can be transformed into a capable, cost‑effective surveillance platform, reinforcing Brazil’s standing in the global defense‑aviation market.

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