A Japanese machine gun from an A6M Zero Kamikaze lodged in the barrels of a Quad 40 mm Bofors AA gun after impact aboard USS Missouri (April 11, 1945).
After action report:
1442 Commences firing on a low flying Zeke coming directly in on starboard quarter, bearing 150 degrees T, distance 7,000 yards [approx. 4 miles], altitude 100 feet.
1443 Zeke [Mitsubishi A6M Zero] crashed ship at frame 169 starboard about 3 feet below main deck level. The ship was sprayed with parts of the plane, and the plane’s starboard wing was thrown forward to the first superstructure [01 level just aft of the Surrender Deck] frame 102, inboard of “5 mount #3. A gasoline fire resulted at this point. The mutilated body of the pilot landed on aft main deck.
1446 Fires were reported under control. No casualties, damage only superficial caused by fire. Minor damage to 40mm quad #17 and bulwark area.
The Type 97 machine gun closely resembled the Army Type 89 machine gun but was the standard fixed light machine gun on Navy aircraft. A licensed copy of the Vickers Class E, it was belt-fed and used a short recoil toggle locked action. It synchronized particularly well and was the standard nose armament on the A6M “Zero.” Illustrating the lack of cooperation between the two Japanese services, the Type 97 and Type 89 were chambered for rounds of slightly different cartridge length and thus their ammunition was not interchangeable.