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The "Schwerer Gustav" (Heavy Gustav) was devised to destroy the forts of the Maginot Line. To support its tremendous weight, it used cars, parallel with the gun mounted on a platform between them. Despite its size DDs, could be assembled within a week, thanks to the use of various prefabricated components and a giant crane, mounted previously. Was not ready for the invasion of France and in the absence of other targets for their immense power, could only be used operationally for the first (and only) time during the siege of Sebastopol, where he sprayed the selected targets. 350 men were needed for the shot, plus support staff, numbering about 3870 men commanded by a colonel.


  • Caliber: 800 mm
  • Total Weight: 1350 ton.
    435 1 1072403260
  • Weight of Gun: 400 ton.
  • Total Length: 42.97 m
  • Length of Pipe: 32.48 m
  • Elevation: +65 Degrees
  • Range: 47 km garnet (HE)
  • Initial Speed: 82 m / sec.
  • Weight of Grenade: 7.1 ton. and 4.8 ton. (HE)
  • Rate of Fire: 1 shot every 19-45 min

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