An item which consists of a caisson containing a swivelling fin guided in its rotative motion by two bearings. the fin has a rear hinged or pivoted section and different functioning systems such as an incidence system, a locking system and a collapsible system. it is mounted on a ship hull to improve its stability when it is at sea.
NSN 5960-00-193-5085
NSN 5915-00-204-4660
NSN 6620-00-463-7497
NSN 5930-01-357-8871
NSN 6240-01-091-9822
NSN 5998-00-417-9003
NSN 5895-01-403-2793
NSN 5998-01-394-0527
NSN 5965-00-497-1130
NSN 6105-00-153-7967
NSN 5999-01-600-1631
NSN 5945-01-448-1724