One of my favorite aircraft. With its huge engine and reverse thrust. Hope you will enjoy it. Fly safe

Press 1 to drop fuel tank. 2 drop ground missiles and 3 o drop air missiles.

Wikipedia.
The Saab 37 Viggen ("Thunderbolt") is a retired Swedish single-seat, single-engine, short-medium range combat aircraft. Development work on the type was initiated at Saab in 1952 and, following the selection of a radical delta wing configuration, the resulting aircraft performed its first flight on 8 February 1967 and entered service in 21 June 1971. It was the first canard design produced in quantity.The Viggen was also the most advanced[vague] fighter jet in Europe until the introduction of the Panavia Tornado into operational service in 1981