China's High-Tech Stealth Planes Rely on Glitchy Russian Engines

Which kind of sucks for China

China's newest stealth fighter prototype is made in the People's Republic and could pose a challenge to U.S. air power. But it's got an Achilles' heel: Its engines are Russian imports.

Without reliable, homemade motors, China's planned stealth armada will continue relying on Russian-made engines that aren't always adequate — and in any event can be withheld by a wary Moscow.