Petrol Classes

Engine Classification – Petrol Motors

Petrol motors recognised and used under the AMPBA rules fall in to two (2) categories. They are:

  • 16-27cc capacity, spark ignition (no glow plugs or converted glow plug engines) and
  • 16-35cc capacity, spark ignition (no glow plugs or converted glow plug engines).
… Read the rest

Electric Classes

Engine classifications of Electric classes:

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Batteries that power the motor(s):

Propulsion energy to be provided by Lithium Polymer (LiPo) cells only.
The cells may be assembled into parallel or series as per racer’s wish.
All cells in the boat shall be the same brand, model, discharge rate and capacity.… Read the rest

Catamaran (Tunnel)

A tunnel Hull is defined as one having two (2) only unbroken sponsons, with or without steps, running the full length
of the craft. The sponsons are to be the only part of the hull to come into contact with the water, thus creating a
tunnel effect through the length of the craft.… Read the rest

Monoplane (Mono)

A mono is a hull that has one continuous wetted surface when operating at racing speed. A Mono must incorporate the following design characteristics and not exceed any of the dimensional restrictions.

  1. A hull that has no discontinuities between or steps in the wetted surface running at more than a 15-degree angle with keel, in plain view.
… Read the rest

Hydroplane (Hydro)

A Hydro hull is supported on two or more wetted surfaces when operating at racing speed. The following are classified as Hydro’s:

  • 3 point suspension hull
  • 4 point suspension hull
  • single-step hull
  • multi-step hull
  • hydro suspension hull

In addition, any hull with added appendage, with air lifting characteristics capable of lifting the hull free of the water while maintaining stability, will also be classified as a Hydro.… Read the rest