RADIO CONTROLLED ELECTRIC POWER BOAT
INSTRUCTION MANUAL
Motor : Watercool RC390 Motor(ST745)
Watercool Brushless Motor(ST745BL)
Speed Control : 2in1 Waterproof ESC / Receiver(ST745)
Waterproof Brushless ESC(ST745BL)
Battery :7.2V 800mAh NiMH Battery(ST745)
7.4V Li-Po Battery(ST745BL)
Propeller : 40x32mm
Hull Material : ABS+PC
Length : 401mm
Beam : 118.5mm
Height : 88mm
Weight : 480k
580g(Including Battery)
ITEM NO.:ST745
ST745BL
• Always carefully follow the directions and warnings
for this and any optional support equipment (chargers,
rechargeable battery packs, etc.).
• Always keep all chemicals, small parts and anything
electrical out of the reach of children.
• Always avoid water exposure to all equipment not
specifically designed and protected for this purpose.
Moisture causes damage to unprotected electronics.
• Never place any portion of the model in your mouth
as it could cause serious injury or even death.
• Never operate your model with low transmitter
batteries.
Age Recommendation:
Not for children under 14 years. This is not a toy.
WARNING : Read the ENTIRE instruction
manual to become familiar with the features of
the product before operating. Failure to operate
the product correctly can result in damage to the
product, personal property and cause serious injury.
This is a sophisticated hobby product and NOT a
toy. It must be operated with caution and common
sense and requires some basic mechanical ability.
Failure to operate this Product in a safe and
responsible manner could result in injury or damage
to the product or other property. This product is not
intended for use by children without direct adult
supervision. Do not attempt disassembly, use with
incompatible components or augment product in
any way without the approval of Horizon Hobby,
Inc. This manual contains instructions for safety,
operation and maintenance. It is essential to read
and follow all the instructions and warnings in the
manual, prior to assembly, setup or use, in order to
operate correctly and avoid damage or serious injury.
As the user of this product, you are solely responsible for
operating in a manner that does not endanger yourself
and others or result in damage to the product or the
property of others.
• When handling and/or transporting your boat, always
pick up the boat from the front, keeping all moving
parts pointed away from you.
• Always keep a safe distance in all directions around
your model to avoid collisions or injury. This model
is controlled by a radio signal subject to interference
from many sources outside your control. Interference
can cause momentary loss of control.
• Always operate your model in open spaces away from
full-size vehicles, traffic and people.
The following terms are used throughout the product
literature to indicate various levels of potential harm
when operating this product:
NOTICE
CAUTION
WARNING
: Procedures, which if not properly followed,
create a possibility of physical property damage
AND little or no possibility of injury.
: Procedures, which if not properly followed,
create the probability of physical property damage
AND a possibility of serious injury.
: Procedures, which if not properly
followed, create the probability of property damage,
collateral damage, and serious injury OR create a high
probability of superficial injury.
Safety Precautions and Warnings
MEANING OF SPECIAL LANGUAGE
01
boat
02
03
As the user of this product, you are solely responsible for operating in a manner that does not
endanger yourself and others or result in damage to the product or the property of others.
• When handling and/or transporting your boat, always pick up the boat from the front, keeping all
moving parts pointed away from you.
• Always keep a safe distance in all directions around your model to avoid collisions or injury. This
model is controlled by a radio signal subject to interference from many sources outside your con-
trol. Interference can cause momentary loss of control.
• Always operate your model in open spaces away from full-size vehicles, traffic and people.
• Always carefully follow the directions and warnings for this and any optional support equipment
(chargers, rechargeable battery packs, etc.).
• Always keep all chemicals, small parts and anything electrical out of the reach of children.
• Always avoid water exposure to all equipment not specifically designed and protected for this
purpose. Moisture causes damage to unprotected electronics.
• Never place any portion of the model in your mouth as it could cause serious injury or even
death.
• Never operate your model with low transmitter batteries.
Age Recommendation: Not for children under 14 years. This is not a toy. Safety precautions and
Warnings
4
04
05
HTX-243RESb
Features
Specifications
Wiring diagram
Functional Description
Note
Binding the transmitter and receiver
2 in 1 Receiver/Esc Easy to operate
Input voltage : 6V-8. 4V DC
BEC : 5V 1A
Output current : Continuously 20A, Instantly 150A
Size : L68.5mm * W32.5mm * H22mm
Motor : High Power 370/20T motor
Connect Battery
Red wire is “+” Black wire is “-“
Antenna
Mini servo
Connect servo wire
Red wire
Red wire
Black wire
Black wire
Black wire
Red wire
This product has a water resistance function
06
Motor
Poor
Difficult steer
07
08
Charging Warnings
WARNING:
Never leave a charging battery pack unattended. Monitor the battery periodically for heat
and if at any point the temperature exceeds 120F, disconnect from the allow it to cool
fully before reconnecting.
Length
401mm
Beam
118.5mm
Transmitter
2.4GHz Radio
Control TX
Stealth Enforcer
Motor : Watercool RC390 Motor(ST745)
Watercool Brushless Motor(ST745BL)
Speed Control : 2in1 Waterproof ESC / Receiver(ST745)
Waterproof Brushless ESC(ST745BL)
Battery :7.2V 800mAh NiMH Battery(ST745)
7.4V Li-Po Battery(ST745BL)
Propeller : 40x32mm
Hull Material : ABS+PC
2
3
4
Boat Battery Pack Installation
1. Lift the back of the canopy lid off the magnet
and pull it back and away from the hull to remove.
2. Adhere loop tape (included) to the battery.
Do not cover the battery warning label.
3. Connect the battery.
4. Secure the boat battery on the hook strip in the boat.
5. Refer to Getting Started instructions about powering
on your boat.
Explode Diagram of the Stealth Interceptor
ITEM ON:ST745/ST745BL
09
745-001
745-009
745-007
745-008
745-010
745-002
745-011
745-003
745-006
28020
HTX-234RESB
745-005
745-013
745-014
745-012
28029
745-004
02057S
SPARE PARTS Stealth Interceptor
st745/st745bl
10
745-003 745-004 745-005745-001
Boat Cover
745-002
Boat Stand
Water Cooling Motor Tablet
Coupler
745-006
Push Rod
745-007 745-008 745-009 745-010
Receiver Holddown
w/fasteners
Organ Set
Rudder
Rudder Main Assembly
745-011
Foam Double Tape 2P
Shafting
Assembly
745-012 745-013 745-014 02057S
Fuel Pipe
Propeller Antenna Pipe
HTX-242T
2.4G Radio Control TX
28029
Watercool RC390 Motor
HTX-243RESB
2in1 Waterproof
ESC/Receiver
ST745 ONLY
Waterproof
Brushless Esc
21405
Option Part
ST745BL ONLY
21470
Watercool Brushless
Motor
Option Part
ST745BL ONLY
eLECTRONICS
Brushless version
Option Part
7.4V Li-Po Battery
LP7415
Option Part
Li-Po Battery Charger
Option Part
A3AU
A3EU
A3UK
A3US
HTX-243SWP
28020
03027
E0MU
Multi Charger
ST745 ONLY
7.2V 800mAh NiMh Battery
Front Suspension Arm Pin (Short)
1.3kg Waterproof Mini Servo
HTX-RXWP
Waterproof
4channels 2.4G Receiver
SPARE PARTS list
11
745-001 Boat Cover SP
745-002 Boat Stand SP
745-003 Water Cooling SP
745-004 Motor Tablet SP
745-005 Coupler SP
745-006 Receiver Holddown w/fasteners SP
745-007 Push Rod SP
745-008 Organ SP
745-009 Rudder Main Assembly SP
745-010 Rudder SP
745-011 Fuel Pipe SP
745-012 Foam Double Tape 2P SP
745-013 Shafting Assembly SP
745-014 Propeller SP
02057S Antenna Pipe SP
HTX-242T 2.4G Radio Control TX EP
HTX-243RESB 2in1 Waterproof ESC/Receiver E
P
28029 Watercool R
C390 Motor EP
21405 Waterproof Brushless ESC (ST745BL only) OP
21470 Watercool Brushless Motor (ST745BL only) OP
Waterproof 4Channels 2.4G ReceiverHTX-RXWP OP
LP7415 7.4V Li-Po Battery OP
A3AU Li-Po Battery Charger (AU) OP
A3EU Li-Po Battery Charger (EU) OP
A3UK Li-Po Battery Charger (UK) OP
A3US Li-Po Battery Charger (US) OP
HTX-243SWP 1.3kg Water Proof Mini Servo EP
28020 7.2V 800mAh NiMh Battery EP
03027 Charger/Battery Wire Connector 1P EP
E0MU Multi Charger EP
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