On June 29, 1987, during one of those missions, a Blackbird launched from RAF Mildenhall, UK, piloted by retired Lt. Cols.
Flying a northern course, at 75,000 feet and Mach 3.0, its right engine exploded.
At an altitude of 25,000 feet, approaching Gotland Island, the Blackbird violated the Swedish airspace triggering a reaction by the Swedish Air Force.
“We were performing an ordinary peace time operation exercise,” recalled retired Maj. Roger Moller, Swedish air force Viggen pilot.
“Our fighter controller then asked me are you able to make an interception and identification of a certain interest.
Moller and his wingman Maj. Krister Sjöberg shadowed the Blackbird for about five minutes at a distance of about 30 meters.
From that position they could see that Blackbird was flying on one engine and that it carried the registration 117964. »