Prefabricated Revetment

A collection of parts which are designed for quick erection and dismantling and designed to protect aircraft and/or equipment from bomb shrapnel and or strafing. The assembled item may consist of parallel walls with the space between them to be filled with dirt or some other material. The assembled item will be open on one end and will not have a roof. For prefabricated items without an open end and/or with a roof see building, prefabricated as modified.