sentences:  The ASh-62 was a development of the Wright R-1820 Cyclone that had been built in Russia under licence as the Shvetsov M-25, the main improvements including a two-speed supercharger and a more efficient induction system.Power was increased from the Cyclone's 775 hp to 1,000 hp.First run in 1937, licensed versions are still in production by WSK "PZL-Kalisz" in Poland (as of 2017).