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.
A single LiPo cell at 3.7V is said to have nominal charge.
A single LiPo cell at 4.2v is said to be fully charged.
** Each single ‘cell’ may not exceed 162.5 grams.

Power classes:

a. EA: The boat shall have 1-4 LiPo cells. ** maximum assembled battery weight per boat of 650g, maximum nominal voltage of 14.8V.

b. EB: The boat shall have 5-6 LiPo cells. ** maximum assembled battery weight per boat of 975g, maximum nominal voltage of 22.2V.

c. EC: The boat shall have 7 – 12 LiPo cells. ** maximum assembled battery weight per boat of 1950g, maximum nominal voltage of 44.0V.

d. ECM: The boat is allowed  2 electrically independent EC power systems,  as c. above. 2x [ ** maximum battery weight 1950g , maximum nominal voltage of 44.0v.]

e. E-SAW: the battery shall have 16 – 20 LiPo cells (** maximum assembled battery weight per boat  of 3250g), a nominal voltage of 29.60V (16 cells as 8S2P) or 37.00V (20 cells as 10S2P).

Motors: Any Brushless permanent magnet motor.

Control:  A boat must have a means of starting and stopping the motor by radio control.

Safety: A disconnect ‘safety loop’ between battery and motor control must be mounted externally, on the deck.

Note: Please refer to the current rule book for more detail.