AJS-37 Viggen
by EvenFlow
uploaded 2018-06-03
42 downloads /
12
points
SPH
stock aircraft
#swedish #fighter #jet #thunderbolt #missiles

The AJS 37 Viggen was the final iteration of the succesful strike fighter introduced into Swedish Air Force service in 1971 as a replacement for the dated subsonic Saab 32 Lansen and the 50s-borne Saab 35 Draken which formed the backbone of Sweden’s aerial capability at the time. The modernized AJS variant offered extended reconaissance capabilities and other improvements over the previous AJ models which enabled it to carry more modern weaponry. Speaking of software, the Viggen was one of the very first production combat aircraft to introduce a flight computer. Structurally, the main difference is the lack of the distinctive tooth on the vertical stabilizer. The vast majority of the updates made to the AJS variant lie under the hood in shape of modern software and a brand new electronic warfare suite.

The Viggen was a unique design, perhaps the closest we’ve ever come to a modern biplane. It’s main delta-configuration wing featured variable leading edge angle along it’s span and multiple pylons for carrying a vast array of weapons - from dumb bombs and rockets, through the newest AIM-120B air-to-air missiles in some of the later modifications to the massive and heavy-hitting Rb-04 and Rb-05 anti ship missiles. The front canard is unusually big and provides a substantial amount of lift. This part of the airframe is perhaps the most important contribution to the Viggen’s STOL capabilities. Viggen’s uniqueness does not end here though. It is one of the only fighter aircraft featuring a sophisticated thrust reverser similar to those used in commercial airliners. It both shortens it’s landing distance and enables it to reverse by itself. This quasi-reverse-gear enabled the Viggen to perform quick, turnarounds on runways.  This maneuver has become one of the Viggen trademarks due to how often it was performed in demonstration flights in front of the public. This multirole jet was a sturdy, easy-to-maintain and reliable platform suitable for the harsh Scandinavian enviroments. It could operate from rural roads, small airports and formed the backbone of Swedish air power in the latter half of the 20th century. Oddly enough, it never found recognition outside of it’s origin country despite numerous efforts to export the Viggen being undertaken throughout it’s service. The AJS-variant Viggen was phased out of service in 2005, but a single 37 (serial no. 37098) has been restored to a flyable condition by the Swedish Air Force. It can sometimes be seen performing demonstrations at airshows all over Europe. Now you can take it to the Kerbin skies in this ugly murderous duckling from the land of Vikings and IKEA and kill some Soviet shipping on the Baltic Sea.

This AJS 37 replica features a functional payload of two Rb-04 missiles on it’s wing pylons. These missiles are fully controllable and can be used to strike targets at over 70km away. They can be operated extremely easily: When jettisoned through staging, a rocket motor is instantly activated and gives the missile the initial push of acceleration before the Juno motor spools up. After the missile is fired all you need to do is switch to the missile via your vessel switch key and guide it to it’s target with control input. Cruising speed of the Rb-04 sits at around 370m/s.

The Viggen is a very simple machine to fly, albeit it requires some care especially when it’s loaded up with missiles. With missiles on their pylons the Viggen has low ground clearance so care should be taken not to slam down too hard when landing as this can damage the missiles. The Viggen is capable of 347m/s flight at sea level, but with stores under the wings this speed drops by about 10m/s. At high altitudes Mach 2+ flight is easily attainable. Yaw control is very responsive and can help push the Viggen through turns faster than usual. Deep stall speed is very low sitting at around 45m/s. Optimal approach speed sits at around 60m/s. AG1 activated the afterburner and Brake key deploys the airbrake under the fuselage.

Have fun flying the fighter jet equivalent of an IKEA table. Multirole, sturdy and simplistic.

v1.0 - Initial release.

Details

  • Type: SPH
  • Class: aircraft
  • Part Count: 263
  • Pure Stock

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