Russia's Su-57 fighter jet. Only 12 have been ordered, and no more orders are coming. Dmitry Terekhov/Flickr Russia announced earlier this month that the Su-57, its proposed entry into the world of fifth-generation stealth fighters, would not see mass production. The jet had some promising capabilities in combat, but design and production difficulties made it a challenging project with limited export potential. This move represents a failure of Russia to manage its huge defense budget and breadth of projects and to find buyers for its version of a jet meant to take on US stealth fighters. Russia announced earlier this month that the Su-57, its proposed entry into the world of fifth-generation stealth-fighter aircraft, would not see mass production. "The plane has proven to be very good, including in Syria, where it confirmed its performance and combat capabilities," Russian Deputy Defense Minister Yuri Borisov said on Russian TV on July 2, as reported by The Diplomat. But despite Russia's nonstop praise for the plane and dubious claims about its abilities, Borisov said, per The Diplomat: "The Su-57 is considered to be one of the best aircrafts produced in the world. Consequently, it does not make sense to speed up work on mass-producing the fifth-generation aircraft." Justin Bronk, a combat-aviation expert at the Royal United Services Institute, told Business Insider that Borisov's comments "could be charitably described as an unreasonably optimistic reason why they stopped production. Basically, Borisov said the plane is so much better than everything out there that Russia doesn't need to build it — a claim Bronk finds unlikely. Instead, Russia will stick to what it's good at, with upgraded fourth-generation aircraft in service instead of the Su-57, which was originally meant to replace the older fighters. The Su-57, a plane designed to function as a killer of US F-35 and F-22 stealth jets with an innovative array of radars, saw a brief period of combat over Syria, but the deployment lasted only days and didn't pit the jet against any threats befitting a world-class fighter. Initially proposed as a joint project with India, the Su-57 hit trouble when neither side could agree on how to split the production and technological development. After 11 years in the program, India withdrew, leaving Russia to go it alone with a weak economy. http://www.businessinsider.com/russia-admits-defeat-su-57-not-going-into-mass-production-2018-7 Lolski. I wonder how much Russia has spent to get figure this out?