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Examples of Regelbau designs that were used in the construction of the Neckar-Enz position. The Regelbau (German for "standard(ised) construction") were a series of standardised bunker designs built in large numbers by the Germans in the Siegfried Line (German: Westwall) and the Atlantic Wall as part of their defensive fortifications prior to and during the Second World War.
A World War II hexagonal pillbox on the bank of the Mells River at Lullington, Somerset, England A British mini-pillbox in Jerusalem. A pillbox is a type of blockhouse, or concrete dug-in guard-post, often camouflaged, normally equipped with loopholes through which defenders can fire weapons.
Bunkers can also be used as protection from tornadoes. Trench bunkers are small concrete structures, partly dug into the ground. Many artillery installations, especially for coastal artillery, have historically been protected by extensive bunker systems. Typical industrial bunkers include mining sites, food storage areas, dumps for materials ...
A blockhouse is a small fortification, usually consisting of one or more rooms with loopholes, allowing its defenders to fire in various directions. [1] It is usually an isolated fort in the form of a single building, serving as a defensive strong point against any enemy that does not possess siege equipment or, in modern times, artillery , air ...
In bunkers designed for war-time use, manually operated ventilators must be provided because supplies of electricity or gas are unreliable. The simplest form of effective fan to cool a shelter is a wide, heavy frame with flaps that swings in the shelter's doorway and can be swung from hinges on the ceiling.
There were three embrasures suitable for rifles or light machine guns and a small entrance like a low window. This design was made from reinforced concrete shuttered by corrugated iron; this gave the design the popular name Armco after the manufacturer of corrugated iron of that name. [29] [30] [31] The type 25 is rare: about 30 are recorded as ...
Hardened aircraft shelter at RAF Bruggen, 1981 The HASs at RAF Upper Heyford in the United Kingdom are protected as scheduled monuments.. A hardened aircraft shelter (HAS) or protective aircraft shelter (PAS) is a reinforced hangar to house and protect military aircraft from enemy attack.
An Indian Wehrmacht volunteer in a Tobruk DFP along the Atlantic Wall, 1944. During the fighting in North Africa (1942–43), U.S. forces employed the shell scrape.This was a very shallow excavation allowing one soldier to lie horizontally while shielding his body from nearby shell bursts and small arms fire.