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U.S. Navy. Via Francillon (1979)
| Weight of
round |
115 g or 4.06 ounce (HEI or AP) |
| Velocity | 2500 feet per second 762 meters per second |
| Range | 2790 feet 850 meters |
| Rate of
fire |
800 rounds per minute |
| Weight of gun |
93 lb 42 kg |
| Gun power |
204 |
This was actually a German cannon,
of which 400 were imported. They were all used on the Ki-61-I "Tony."
The gun used a recoil action and was fed from belts of 140 rounds.
It was the most successful German 20mm gun and was based closely on
the MG 151 15mm gun. It was available in both percussion and
electrically fired variants, but those delivered to Japan were
apparently of the electrically fired kind.
Armor penetration was about 0.47"
to 0.51" (12 to 13 mm) at 330 yards (300 meters) and 30 degrees.
References
Francillon
(1979)
Williams and
Gustin
(2003)
The Pacific War Online Encyclopedia © 2007, 2009 by Kent G. Budge. Index
