Products

HEM’s charter is to produce the highest power electric outboard motors on the planet. Our company plans to produce 100HP, 150HP, 200HP, 250HP, 300HP, 350HP, 400HP and 450HP electric outboard motors.

Our First Motor

Our first product is a 350HP outboard electric motor inverter that will propel a 24 foot tritoon to a top speed of over 60 MPH with a range of 40 miles (average). We have built and tested 5 prototype 350HP motors since the company’s inception in June of 2019. The last 2 configurations have proven ample performance for our first motor.

Motor Specs
Motor Type
Power HP/KW
Torque Ft.-Lbs/M-Kg
Weight Lb/Kg (Dry weight)
Shaft Length
Engine Management System
Gear Case
Gear Ratio
Counter Rotation
Colors
Warranty
Values
3 phase 400V Induction motor
370/276
300/201
500/227
25”/635 mm
Custom D-logic Display/Controller
5” Diameter
1.75:1
Available in both gearcases
Bright Green
3-Year Limited for Recreational

Our products utilize a 10.1 inch marine grade touchscreen display that is easily readable in bright sunlight. This display integrates many of the discrete functions that are typically indicated by individual gauges. The following charts show the current functions that will be integrated into the display for easy viewing and control.

Touch Screen Select
Metric / SAE Select**
Trim Lev Set 0-90 deg***
Nav Lights On/Off
Fwd Head Lamps On/Off
Rear Head Lamps On/Off
Drive Select Fwd/Neut/Rev
Charger Init On/Off
Trip Data Download Init
Destination
Display
Trim Motor
Boat Lights
Boat Lights
Boat Lights
Inverter
Battery
Remote Storage
Interface
N/A
Discrete Up/Down
Discrete
Discrete
Discrete
3 Ln Throttle Control
CAN Bus
Onboard Storage

Latest Development Photos

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Display Function
0-100 MPH Speed*
0-160 KPH Speed*
0-12,000 Elect Mot RPM
0-100 Miles Trip Odometer*
0-160 Km Trip Odometer*
0-10K Miles Odometer*
0-16K Km Odometer*
0-100 Miles (Batt) Range***
0-160 Km Range***
0-10K Hours (Motor)
0-500K Watts (Power)***
0-670 HP (Power)***
FWR/Neutral/REV Mot Drive
Throttle Control Pos 0-100**
Mot Stat Temp 0-400 deg F*
Mot Stat Temp 0-200 deg C*
Invert Temp 0-400 deg F*
Invert Temp 0-200 deg C*
Batt Temp 0-400 deg F*
Batt Temp 0-200 deg C*
Pent Temp 0-400 deg F*
Pent Temp 0-200 deg C*
Trim Lev Pos 0-90 deg
Nav Lights status On/Off
Docking lamps On/Off
Rear Ski lamps On/Off
Chrg On/Off Time Remain**
Chrg Voltage 200-419 VDC
Trip data downloading
High Temp Throttle Limit
Source
GPS
GPS
Inverter
GPS
GPS
GPS
GPS
Inverter
Inverter
GPS/Real Time Clock
Inverter
Inverter
Throttle Control Stick
Throttle Control Stick
Inverter
Inverter
Inverter
Inverter
Battery
Battery
Battery
Battery
Trim Position Sensor
Touch Screen
Touch Screen
Touch Screen
Battery
Battery
Display
Display
Interface
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus / 3 Discrete
Dual Hall Eff 0-5VDC
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
CAN Bus
Discrete Hall Effect
Discrete
Discrete
Discrete
CAN Bus
CAN Bus
Onboard Storage
CAN Bus

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