Model type: Electric-powered catamaran
Skill level: Beginner to intermediate
Overall length: 32 inches (813mm)
Hull length: 29. 75 inches (756mm)
Width: 10. 5 inches (242mm)
Empty weight: 4. 18 pounds ( 1.89kg)
Power system: AquaCraft 35-36 1,800 kV brushless outrunner;
60-amp speed controller
Radio system: Tactic 2. 4 GHz
Construction: Hand-laid fiberglass
Finish: High-gloss paint with Lucas Oil graphics scheme
Street price: $399.99
Motor used: AquaCraft 35-36 1,800 kV six-pole brushless
Batteries: Two AquaCraft GrimRacer 7.4-volt 30C 4,200 mAh
Propeller: Two-blade FRP 43 x 50
Radio system: Tactic TTX240 pistol-grip transmitter; TR324 three-channel 2. 4 GHz receiver
5. 26 pounds ( 2. 39 kg)
Run duration: 3-4 minutes at full throttle
• Turnkey, high-performance electric boating straight out of the
• The included power system is rated with enough overhead to
allow the boat to be hopped up or propped up, negating the
need to initially upgrade the motor or speed controller.
• Water cools the brushless outrunner and speed controller.
• GrimRacer hardware is made from beefy aluminum stock.
• You may go through plenty of of hull tape in a typical session.
• Practically demands the use of a dual-output charger.
AT A GLANCE ...
The boat is catching its breath a;er several high-speed runs.
servo would deflect slightly in its mount at maximum steering
input. I dialed the steering rates back, leaving the rates set at the
point where the servo maintained its position.
The twin LiPo batteries are secured saddlebag style on either
side of the boat’s interior using hook-and-loop fastener. After they
are mounted in place, the transmitter can be powered up and the
batteries connected. The ESC will ring out a tone, letting you know
that the system is prearmed (it is important to momentarily leave
the boat in this prearmed state).
The final step is to replace the hatch and seal it into position
using tape. Although not difficult, the process causes me to wonder
why creative engineering on the part of the manufacturer cannot
produce a less-time-consuming, effective sealing solution. The
throttle will not respond to inputs from the transmitter trigger until
the ESC is fully armed.
The site where I shot all of the media used in this review has
numerous ponds, all of which are lined with large rip-rap stone.
Carrying the boat down to the water’s edge was slightly dicey,
because the footing on the large rocks was uneven and even
treacherous. It is not hard to imagine what could happen if one
tripped carrying a fully armed boat! For safety’s sake, the boat
should not be fully armed until it is placed on the water. After it is
on the water, keep it within easy reach in case it does not properly
With the ESC notifying me that the power system was fully
armed, I gave the catamaran a soft nudge with the toe of my boot
to send it away from shore. When I was sure it was in deeper water,
I pulled the trigger on the Tactic transmitter. The yellow and white
catamaran jumped forward and was on step in an instant.
The sound made by the big water-cooled outrunner and
GrimRacer propeller was downright savage! The rooster tail and
wake generated behind the boat at full speed was impressive. This
boat blows water up into the air everywhere! I had concerns about
flipping the boat should I too aggressively give it steering input;
however, with the steering rate adjustment on the transmitter set in
www.ModelAviation.com BOAT 3 Model Aviation APRIL 2014