Armoring involves building revetments, seawalls, detached breakwaters, groins, etc. These structures included seawalls and revetments or sand-trapping structures such as groynes. Coastal bulkheads are most often referred to as seawalls, bulkheading, or riprap revetments. Structures that run parallel to the shore (seawalls or revetments) prevent erosion. Detached Unit 1 constructed barracks, buildings, laid runway matting and erected aircraft revetments. The airfield has examples of Second World War bunkers, air-raid shelters and revetments. The most basic revetments consist of timber slants with a possible rock infill. Another source of inspiration was the Pantheon with its dome, marble revetments and Corinthian pilasters. The southern part of the airport has hardened aircraft shelters and artillery revetments. Gabions are also used for aircraft revetments, blast walls, and similar structures. It was a small fighter airfield with a few revetments. Most revetments do not significantly interfere with transport of longshore drift. A section of this dyke, known as the Groenendijk, was not reinforced with stone revetments. German bombers were to be well-dispersed and parked in revetments. Steel and sand revetments also remain on the ramp.