Atomic Cat 70 Brushless ARTR Racing Boat (Yellow)FEATURES With 'fast' written all over it, there ll be no escaping the attention you get when you arrive at the lake with this out and out brushless, LiPo fuelled speed machine. Catamarans look fast even when they re standing still and the sleek Atomic Cat 70 is no exception. Topping out at 55 km h the Atomic Cat owes its performance to a time honoured hull design, optimised with an 1800KV water cooled brushless motor and 40A waterproof brushless ESC.