Entwistle has manufactued special doors for the United States Navy and its shipbuilding prime contractors in a variety of shapes and sizes. These doors have served a number of purposes ranging from protecting ship magazines to participating in a composite helicopter hangar door program.

Entwistle has manufactued retractable bitts and chocks for the United States Navy and its shipbuilding prime contractors for over fifteen years. The bitts and chocks can be fully retracted into a flight deck during flight operations thereby allowing ships mooring equipment in the area of the flight deck of the ship. The retractable bitts and chocks meet the requirements of NAVSHIPS Drawing 805-1843362.