Bulbous bow (BB). The shape of the foremost portion of the ship, the bow, in the form of a rounded bulb instead of the traditional V shape, in order to reduce hull resistance and its effect on speed in the water.
Baltic Exchange. Situated in London, England, this is the foremost shipping market-place in the world. Shipbrokers meet in the Exchange daily to charter ships and to exchange information. Trade is also carried out in commodities such as grain. The Baltic also lends its name to an "Index", the Baltic Freight Index (BFI). Since 1985 there has been a development of freight futures (BIFFEX), and these are also transacted on the "floor" of the Exchange.
Below bridges (BB). This term can be Found in instructions from port and charterers' agents to the ship to ensure that the ship is kept at the appropriate draft in order to ensure that it will have sufficient clearance above its highest point to pass safely below bridges (or overhead obstructions such as power cables) across a canal, channel or river in the approaches to a berth or port. To ensure the ship's clearance below bridges would be the shipowner's obligation.
Breakdown clause. Time charterparties contain a clause providing that if the ship is unavailable for the charterer's use because there is loss of time as a result of "...breakdown or damages to hull, machinery or equipment..." (among other causes) payment of the hire money to the shipowner ceases for all or some of the time lost.