Russia’s Ufa-based engine manufacturer, UEC-UMPO, responsible for producing engines used in fighter jets such as the Su-57, Su-35S, Su-30, and Su-27, has received its fourth bankruptcy warning since early 2026. The latest notice concerns a court-mandated debt of nearly 39 million rubles owed to Ulyanovsk’s InterStankoService. InterStankoService plans to file a bankruptcy petition with the […]