When the Saab 35 went out of service, the maneuver did as well, as the next generations of Swedish warplanes, the Saab 37 and the Saab 39, couldn't effectively perform the maneuver. Due to the secrecy of the Cold War era and other factors, the Swedish Cobra was largely unknown to the world, until some former Saab 35 and 37 pilots brought it up years later in books and articles, although this was long after the Soviets had been credited with its discovery.