Type 636

The type 636 is an observation bunker intended to direct artillery fire. This type of bunker was emplaced overlooking the beachheads in Normady and elsewhere along the Atlantic Wall. The most prominent characteristic, the semi-circular dome, is the observation position. The dome was designed to offer high visibility but significant protection from direct fire as well as assaulting infantry. The rounded faces are designed to cause grenades to roll away from the observation position.

The entrance is protected by two crenellated machine gun embrasures, one covering a wide arc behind the bunker and the other directly covering the entrance stairwell. The entrance also is protected by a gas lock to prevent the crew from being overwhelmed by gas attack.

The floorplan includes a ready-room, barracks, radio-room and officer's office and quarters. The walls and ceiling are several meters thick cast reinforced concrete.

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