Saab Viggen J37 Thunderbolt Takeoff and flight. This was a real challenge to record but managed to catch most of it. The takeoff is amazing to experience from the viewpoint we're standing at making you feel the thrust which is a very intense feeling. Similar to a really long shockwave flowing through your body. The Saab 37 Viggen (English: Thunderbolt) was a Swedish single-seat, single-engine, short-medium range fighter and attack aircraft, manufactured between 1970 and 1990. Several variants were produced to perform the roles of all-weather fighter-interceptor, ground-attack and photo-reconnaissance, as well as a two-seat trainer. In 1960, the US National Security Council, led by President Eisenhower, formulated a military security guarantee for Sweden. The US promised to help the Swedish militarily in the event of a Soviet attack against Sweden; both countries signed a military-technology agreement. In what was known as the "37-annex", Sweden was allowed access to advanced US aeronautical technology which made it possible to design and produce the Saab 37 Viggen much faster and cheaper than would otherwise have been possible.