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| AC 47 | |
|---|---|
 AC 47 of Block 1, Ouvrage Schoenenbourg in 1940 | |
| Type | Anti-tank |
| Place of origin | France |
| Service history | |
| In service | 1930s - 40s |
| Used by | France |
| Wars | World War II |
| Production history | |
| Variants | Naval |
| Specifications | |
| Caliber | 47 mm (1.85 in) |
| Rate of fire | 20 rounds per minute |
| Muzzle velocity | 900 metres per second (3,000 ft/s) |
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The AC 47 was a French anti-tank gun of 47 mm calibre. It was principally used in the ouvrages and casemates of the Maginot Line in the late 1930s; another version was created for naval use.
The AC 47 was principally used as a defensive weapon, since its portability was intentionally limited to prevent the weapon from being turned on defending troops if a fortification was captured.