Nudelman N-37 - Variants

Variants

N-37

basic version without muzzle brake

N-37D

N-37 with muzzle brake

N-37L

N-37 with 1950mm long barrel (had no muzzle brake)

NN-37

improved N-37L developed during the late 1950s for the Yak-27 reconnaissance aircraft. The NN-37 differed from the N-37L in having a pneumatic counter-recoil accelerator, therefore achieving a rate of fire of 600-700rpm. The ammunition feed mechanism was redesigned as well on this version.