Commander of Sweden's Air Force, Mats Helgesson, stated that the country's recently developed Saab JAS 39 Gripen E jets were "designed to kill Sukhois" — Russia's top air superiority fighters, Finnish national broadcaster Yle reported. In a bid to further stress the Gripen E's effectiveness, Helgesson concluded that the aircraft have a "black belt" in fighting Russian jets.
Justin Bronk, an aerial-combat expert at the Royal United Services Institute, cited by Business Insider, said that the JAS 39 Gripen series is known for its outstanding EW capabilities, which are upgraded every two years.
"Several years ago the Gripen pilots got tired of being made fun of by German Typhoon pilots and came to play with their wartime electronic warfare and gave them a hell of a hard time", he said.
At the same time, Bronk noted that a pilot never knows in advance whether EW will work, and even if it does, the pilot will still have to engage in a fight.
Although it's unclear how powerful the EW components of the JAS 39 Gripen E are in comparison to those of the Su-57, as the two have never competed in the air, the Russian fighter jet is capable of carrying a far greater payload (10,000 kg, in comparison to 5,300kg for its Swedish counterpart) and reaching higher speeds (2.45 Mach in comparison to 2 Mach by the Gripen E). Additionally, Russian Sukhoi jets are known for their manoeuvrability in dogfights and ability to perform stunning feats in the air.