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In addition, bunker design was arranged in "series", the 1939 designs with A and B thickness falling into the 100 series. Later 400 , 500 and 600 series were created, the new series were more designed to enable the casemate to be capable of taking captured weapons than to be stronger, the 400 series was designed for Czechoslovakian weapons.
There were also designs for pillbox-like structures for various purposes, including light anti-aircraft positions, observation posts and searchlight positions to illuminate the shoreline. In addition, the Air Ministry provided designs of fortifications intended to protect airfields from troops landing or parachuting.
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.
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Originally, the plan for the aircraft hangar (German Kavernenflugplatz) included the possibility of launching combat aircraft from the mountain air base. High costs and technical difficulties prevented these plans from being realised. [14] [15] The idea of using roads as runways was later part of the design demands for the Swiss motorway network.
Meta's Mark Zuckerberg and his wife Priscilla Chan reportedly plan to build a 5,000-square-foot underground bunker on their Hawaii property.
Bunkers deflect the blast wave from nearby explosions to prevent ear and internal injuries to people sheltering in the bunker. While frame buildings collapse from as little as 21 kPa (3 psi ; 0.21 bar ) of overpressure , bunkers are regularly constructed to survive over 1,000 kPa (150 psi; 10 bar).
They were called Hochbunker (literally, "high bunkers"; better translated as "above ground bunkers", to distinguish them from the usual deep i.e. underground air raid shelters) and those that functioned as anti-aircraft artillery platforms were also called Flak towers. Some were over six stories high; several survive to this day because of the ...