Embraer R-99

E-99/P-99/R-99
Brazilian Air Force E-99
Role	Airborne early warning and control (AEW&C) (E-99) Remote sensing (R-99) Maritime patrol (P-99) Type of aircraft
National origin	Brazil
Manufacturer	Embraer
First flight	1999
Introduction	2001
Status	Active in service
Primary users	Brazilian Air Force (E-99M/R-99) Hellenic Air Force (R-99A) Mexican Air Force (R-99A/P-99) Indian Air Force (Netra AEW&CS)
Produced	1999–present
Number built	6 (EMB-145-SA) 3 (EMB-145-RS) 2 (EMB-145-MP) 4 (EMB-145-H) 3 (EMB-145-I)
Developed from	Embraer ERJ-145

The Embraer R-99 is the Brazilian Air Force (FAB) military designation of the EMB-145-RS. Various models of the aircraft have been produced to perform special mission duties, including the E99 for airborne early warning and control (AEW&C) missions, the R-99 for remote sensing, and the P-99 for maritime patrol.

Development of the R-99 began during the 1990s in response to a FAB requirement for an airborne early warning and control (AEW&C) platform, as well for the export market. The airframe is based on the ERJ 145 civil regional jet and modified with specialised mission equipment based on the mission role desired. It is typically powered by a pair of Rolls-Royce AE1 3007 turbofan engines; the military versions provide 20% more thrust than the civil version.^[1] The maiden flight of the R-99 took place in 1999; it entered operational service with the FAB two years later.

Export customers for the type include the Hellenic Air Force, Mexican Air Force, and the Indian Air Force. Some customers have opted to buy the airframe and separately outfit it with their own electronics packages. It has been deployed in response to various events, including the Shining Path hostage crisis, the loss of Air France Flight 447, the 2011 military intervention in Libya, and the SIVAM program. During the 2010s, the FAB opted to modernise their R-99 fleet, not only extending its service life but also giving it new capabilities, such as a longer effective radar range and datalink facilities. Embraer has proposed new variants of the type, such as the armed P-99 anti-submarine warfare (ASW), which is to be capable of using both torpedoes and anti-ship missiles.