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Saab 37 Viggen

Interceptor and attack aircraft

Saab 37 Viggen

All Saab 37 Viggen aircraft were finally replaced by the JAS 39 Gripen in 2006



Entered service 1972
Crew 1 men
Dimensions and weight
Length 16.4 m
Wing span 10.6 m
Height 5.9 m
Weight (normal take off) 15 t
Weight (maximum take off) 17 t
Engines and performance
Engines 1 x Volvo Flygmotor RM8B turbofan
Traction (with afterburning) 125.04 kN
Maximum speed 2 126 km/h
Combat radius more than 1 000 km
Armament
Cannon 1 x 30-mm Oerlikon KCA cannon
Missiles up to 6 x Rb 71 (Sky Flash) or Rb 99 (AIM-120 AMRAAM) and Rb 24J  (AIM-9J) or Rb 74 (AIM-9L) air-to-air missiles. For secondary air-to-surface role it carries Rb 04E and Rb 15F anti-ship missiles, AGM-65 Maverick air-to-surface missiles, DWS 39 Mjolner SMDs
Other M70 135-mm rockets

 

   Designed to meet exacting Swedish requirements, the innovative Saab 37 Viggen (thunderbolt) multi-role fighter was for many years the backbone of Sweden's air defence, and today five of the Flygvapnet's front-line Flottiljer continue to fly the type. The first Viggen prototype made its maiden flight in 1967, and the initial production AJ 37 attack fighter (108 built) flew in 1971. The other major variants comprised 27 SF 37s for all-weather overland reconnaissance, 28 SH 37s for maritime reconnaissance and 17 Sk 37 operational conversion trainers.

   Between 1979 and 1990 the Flygvapnet received 149 second-generation JA 37s for the interceptioin role. During 1993-1997 Saab converted 48 AJ 37, 25 SF 37 and 25 SH 37s to AJS 37 standard to provide integrated attack, fighter and reconnaissance capabilities. Funding problems restricted the upgrade and a common standard was not achieved. Despite this programme, the attack/recce Viggens were rapidly replaced by JAS 39 Gripens and only one wing (F21) operated these AJS 37s in 2001.

   Meanwhile the JA 37 has been kept continually up-to-date, with the most recent programme referred to as the Mod D standard. This adds an updated PS46A radar and a new weapons interface and stores management computer that enables the use of AIM-120 AMRAAMs. The first upgraded JA 37 was re-delivered in 1998. The JA 37 currently equips four wings, each with two Divisionen (squadrons). Ten of the Flygvapnet's 14 surviving Sk 37 trainers have been converted into SK 37E Stor-Viggens (jammer Viggens). These will be tasked with electronic warfare training for Sweden's armed forces and operational EW support for Flygvapnet combat units as well as type conversion for all future Viggen pilots. Electronic warfare equipment comprises various systems installed in the airframe, as well as advanced U95 active jammer pods, U22/A jammer pods and KB chaff and flare dispenser pods. The Viggens were finally replaced by the Gripens in 2006.

 

Video of the Saab 37 Viggen interceptor

 
Saab 37 Viggen

Saab 37 Viggen

Saab 37 Viggen

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