page_title: Saab JAS 39 Gripen
section_title: Variants
hierarchical_section_title: Saab JAS 39 Gripen / Variants
caption_attribution_description: English: Royal Thai Air Force Jas-39D in 2016
context_page_description: The Saab JAS 39 Gripen is a light single-engine multirole fighter aircraft manufactured by the Swedish aerospace company Saab. The Gripen has a delta wing and canard configuration with relaxed stability design and fly-by-wire flight controls. It is powered by the Volvo RM12, and has a top speed of Mach 2. Later aircraft are modified for NATO interoperability standards and to undertake air to air refuelling.
  In 1979, the Swedish government began development studies for an aircraft capable of fighter, attack, and reconnaissance missions to replace the Saab 35 Draken and 37 Viggen in the Swedish Air Force. A new design from Saab was selected and developed as the JAS 39, first flying in 1988 and entering service with the Swedish Air Force in 1996. Upgraded variants, featuring more advanced avionics and adaptations for longer mission times, began entering service in 2003.
  To market the aircraft internationally, Saab formed partnerships and collaborative efforts with overseas aerospace companies, including, in 2001, BAE Systems.
context_section_description: JAS 39A: initial version that entered service with the Swedish Air Force in 1996. A number have been upgraded to the C standard.
  JAS 39B: two-seat version of the 39A for training, specialised missions and type conversion. To fit the second crew member and life support systems, the internal cannon and an internal fuel tank were removed and the airframe lengthened 0.66 m (2 ft 2 in).
  JAS 39C: NATO-compatible version with extended capabilities in terms of armament, electronics, etc. Can be refuelled in flight.
  JAS 39D: two-seat version of the 39C, with similar alterations as the 39B.
  Gripen NG: improved version following on from the Gripen Demo technology demonstrator. Changes from the JAS 39C/D include the more powerful F414G engine, Raven ES-05 AESA radar, increased fuel capacity and payload, two additional hardpoints, and other improvements. These improvements have reportedly increased the Gripen NG costs to an estimated 24,000 Swiss Francs (US$27,000) per hour, and increased the flyaway cost to 100 million Swiss Francs (US$113M).
  JAS 39E: single-seat production version developed from the Gripen NG program, priced at US$85 million a unit. Sweden and Brazil have ordered the variant.  Brazil's designation for this variant is F-39E.
  JAS 39F: two-seat version of the E variant. Eight ordered by Brazil, to be developed and assembled in São Bernardo do Campo, Brazil; planned for pilot training and combat, being optimised for back seat air battle management, with jamming, information warfare and network attack, besides weapon system officer and electronic warfare roles.  Brazil's designation for the variant is F-39F.
caption: Royal Thai Air Force JAS-39D in 2016
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