Nevertheless, when the first A6M2 was completed in January 1940, the Sakae's extra power pushed the performance of the Zero well past the original specifications.
Meskipun demikian, ketika A6M2 pertama selesai pada Januari 1940, tenaga ekstra mesin Sakae terbukti mendorong kinerja Zero jauh di atas spesifikasi orisinal.