d.b.e. Despatch payable both ends.
Dock charter. A "dock" is an area within a port within which cargo can be loaded of discharged. It can be enclosed by "dock walls" or "breakwaters". In relation to chartering, a dock can be a named destination for the ship to be an "arrived ship" and laytime commencing under a voyage charter or hire commencing under a time charter. A dock, as a destination in a dock charter, is less specific than a berth (a place within a dock or port) under a berth charter and more specific than a port in a port charter.
Depth. The depth is the vertical distance measured from the keel to the deck. The extreme depth is the depth measured at the ship’s side from the uppermost continuous deck to the lower point of the keel. The moulded depth is measured from the top of the keel plate (the “base line”) to the underside (that is, the heel) of the deck beam at the ship’s side amidships.
Double bottom. The double bottom, extending from the forepeak to afterpeak tank, considerably increases the safety of the vessel in case of serious bottom damage by grounding, which might otherwise result in flooding of the cargo holds or engine room. Moreover, the double bottom, which is subdivided into a number of tanks, is suitable for carriage of water ballast, fuel oil, fresh water etc., and increases the longitudinal strength of the vessel.
The double bottom tanks are accessible from the ship’s holds or tunnel by means of manholes, which are closed by watertight covers with bolts.