Seakeeper 1

Boat Size Range

7-9m (~23-30’)

Boat Weight

up to ~5.5 tons


Seakeeper 2

Boat Size Range

9-11m (30’-36’)

Boat Weight

up to ~8 tons


Seakeeper 3

Boat Size Range

10.5-12.5m (35’-41’)

Boat Weight

up to ~11 tons


Seakeeper 4

Boat Size Range

11.5-13.5m (38-44’)

Boat Weight

up to ~16 tons


Seakeeper 4.5

Boat Size Range

12-14m (40’-46’)

Boat Weight

up to ~18 tons


Seakeeper 6

Boat Size Range

13.5-16m (44’-53’)

Boat Weight

up to ~24 tons


Ideal for 11.5-13.5 meters (38-44’) Boats

Seakeeper 4

The Seakeeper 4 is setting new standards in roll reduction for boats ranging from 11.5 to 13.5 meters (38 to 44 feet). Its compact, lightweight design is optimised for DC power, making it ideal for boats without generators. It fits anywhere the Seakeeper 3 can, offering a simple yet powerful upgrade solution.

Technical Specifications

Max Rated Speed

8,250 RPM

Angular Momentum at Max Rated RPM

4,000 N-M-S

Max Anti-rolling Torque at Max Rated RPM

10,427 N-m

Spool-up Time to Max Rated RPM

60 minutes (8,250 RPM)

Spool-up Time to Stabilization

34 minutes (6,188 RPM)

Power Consumption

Spool-Up Power

1,050 Watts Max

Spool-Up Power Input

12 VDC @ 88 Amps Max

Operating Power

550 – 1,050 Watts

Operating Power Input

12 VDC @ 46 – 88 Amps

Control Power

120 Watts Max

Control Power Input

12 VDC @ 15 Amps Max

Seawater Pump Power Input

12 VDC @ 15 Amps Max

Weight

338kg (746 lb)

Envelope Dimensions

675 L x 713 W x 533 H (mm)
26.56 L x 28.05 W x 20.98 H (inches)

Noise Output

<72 dBC @ 3.3 feet (1 meter)

Seawater Supply to Heat Exchanger

2.5 GPM (9.5 LPM) Minimum 4 GPM (15.2 LPM) Maximum

Ambient Air Temperature

0C – 60C (32F – 140F)

Resources

Seakeeper 9

Boat Size Range

15-18m (50’-60’)

Boat Weight

up to ~30 tons


Seakeeper 10.5

Boat Size Range

16-19m (50’-62’)

Boat Weight

up to ~36 tons


Seakeeper 14

Boat Size Range

17-20m (55’-68’)

Boat Weight

up to ~45 tons


Seakeeper 18

Boat Size Range

18.5-23m (60’-75’)

Boat Weight

up to ~60 tons


Seakeeper 26

Boat Size Range

21.5-26m (70’-85’)

Boat Weight

up to ~75 tons


Seakeeper 40

Boat Size Range

26-33m (85’-110’)

Boat Weight

up to ~115 tons


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