Boating Glossary of Terms

inboard engine: An internal combustion engine often mounted amidships that runs a drive shaft through the hull bottom.
inboard/outboard (I/O): See stern drive.
inflatable: Capable of being inflated either with air, as in a life raft or life vest.
inflatable boat: A type of boat with air chambers into which air is pumped either manually or automatically for buoyancy, some having rigid bottoms.
inner liner: Smooth-finished, molded fiberglass structure adjacent to the inside portion of the hull.
inverter: Device that changes 12-, 24- or 32-volt direct current (DC) from a battery to 120-volt alternating current (AC).

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