Interior

The interior of a motorboat covers all fixed and movable components on deck and below deck that are required for operating, living on, and the safety of the boat. Which equipment is on board depends on the size and intended use of the boat.

Helm Station

The helm station is the central operating position of the boat. It contains the wheel, gear and throttle levers, ignition switch, and the most important instruments:

On larger boats a chartplotter, an echo sounder, and a VHF radio are additionally installed at the helm.

Cockpit

The cockpit is the open area around the helm station. It provides space for the crew while underway and is fitted with benches, stowage, and one or more drains so that water can run overboard.

Cabin

The cabin is the weather-protected interior space below deck. On cabin boats it typically contains berths, a saloon with table, and lockers for personal equipment. Larger yachts also have separate cabins.

Galley and Head

The galley contains the on-board kitchen with cooker, sink, and icebox. The head houses the toilet and washing facility. Many waters have regulations forbidding the discharge of waste overboard; in such areas waste must be collected in a holding tank and disposed of ashore.

Tanks and On-Board Systems

Below deck are the tanks for fuel, fresh water, and, where required, sewage. The on-board systems also include:

Adequate ventilation is mandatory, since explosive petrol or gas vapours can accumulate in enclosed engine rooms.

Deck Hardware

On deck there are cleats, bollards, handrails, the pulpit and stanchions, and mooring eyes. They serve to secure lines, to move about the boat safely, and to attach fenders and the anchor.