Complex sentence: The 12Y was also produced under license in the Soviet Union as the Klimov M-100, which later spawned the highly successful Klimov VK-105 series that powered the Yakovlev and Lavochkin fighters as well as the Petlyakov Pe-2 bomber.
Split into simpler sentences: The 12Y was also produced under license in the Soviet Union as the Klimov M-100. This design later spawned the highly successful Klimov VK-105 series that powered the Yakovlev and Lavochkin fighters as well as the Petlyakov Pe-2 bomber.