Originally posted by MiloMorai The development of the La-7 (design bureau designation La-120) did not start until the autumn of '43, with production starting in the spring of '44 at plants in Moscow and Yaroslavl. Service introduction was in the late spring and early summer of '44. The prototype did not fly until Nov. '44.Among the first units to receive the La-7 was the 176th Guards IAP.
The intended armament comprised three 20-mm Berezina B-20 cannon, but while this armament was installed in aircraft built at Yaroslavl, those built at Moscow reverted to the twin ShVAK cannon of the La-5FN.