The definition comes from English (Hydroplane) which means "gliding on the water". In the jargon is used as "3 points" because the hull, once launched, touching the water only at three points.

The speed search imposes hulls aerodynamically and hydrodynamically increasingly elaborate, very light but also very resistant.

Typical lateral sides act as stabilizers and livelihood while the hull is kept to an absolute minimum.

The engines are like the MONO while speeds are of the order of 80 – 150 km/h.
In 2006 in Los Angeles a German model maker has established the world record for speed with a Hydro Electric: 224 km/h.