This is a ventilated shelter for 18 men and a fire position for 2 men with emergency exit. It is a reinforced splinter-proof protection or better for shelter with a stone-/concrete jacket.
It can be delivered with an exit-tube. It can be delivered with cover. The cover can be raised and covered by sandbags for splinter-proof protection. A cover made by timber/ sandbags can be used.
'½ cup', elements and cover made by fiber glass reinforced polyester. Container and concrete elements has a weight of approximately 11 tons. Construction-tube diam. 800mm. Crushed stone (diam. 20, 30-60mm) and drained soil.