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JA37 Viggen Mid-Life Update Enters Flight Testing
Saab has completed development of a mid-life update for the JA37 Viggen fighter and begun flight testing of a prototype for the Swedish air force.
The first flight of the test aircraft took place on June 4. The upgrade encompasses adding a 1553 digital data bus and new weapons interfaces to allow the aircraft to carry all the armaments planned for the Gripen, including the Advanced Medium-Range Air-to-Air Missile (AMRAAM).
The program also includes:
-- An upgraded Ericsson PS-46A radar.