A hydroplane is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy.
Ellstrom Elam Plus, at the 2006 Madison Regatta.
Miss Madison / Oh Boy! Oberto unlimited hydroplane in 2007, with extended air scoop.
No-Vac at speed, 1933
Miss Jarvis on transport trailer, 2010
A motorboat, speedboat or powerboat is a boat that is exclusively powered by an engine.
A motorboat with an outboard motor
Lazzara 80 Sky Lounge enclosed bridge
Model of the first motor boat constructed by Gottlieb Daimler and Wilhelm Maybach in 1886
Dorothy Levitt won the first Harmsworth Cup, driving the Napier motor yacht in 1903