N-37
37 mm autocannon designed as aircraft armament
English: The N-37, Nudelman N-37 was a heavy 37 mm aircraft autocannon
Deutsch: Die NR-23 Nudelman N-37 war eine schwere 37 mm Flugzeug-Maschinenkanone
Русский: Н-37: Нудельман Н-37, авиационная пушка
-
MiG-17 cannons: N-37 and NR-23
-
Chinese N-37L cannon