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Seakeeper Equipment

Seakeeper 40

Vacuum-encapsulated gyroscopic anti-roll stabilizer for boats of approx. 85' - 110', with 40,000 N-M-S angular momentum at max rated speed.

Description

The Seakeeper 40 is a gyroscopic stabilizer that counteracts boat roll at rest and underway. Engineered from the previous Seakeeper 35, it suits boats of 85 feet and up (up to 115 tons), features field replaceable bearings (FRB), and multiple units can be fitted on larger boats.

Inside a vacuum encapsulation the flywheel spins at up to 5,150 RPM. When the boat rolls, the gyro tilts fore and aft (precesses), producing gyroscopic torque to port and starboard that counteracts the roll.

Key features

  • Ideal for boats of approx. 85' - 110'
  • Angular momentum at max rated speed: 40,000 N-M-S
  • Spool-up time to stabilization: 40 minutes (3,863 RPM)
  • Operating power: 1,900 - 4,400 Watts; power input 208-230 VAC @ 30 Amps, 50/60 Hz
  • Weight: 4,074 lb (1,848 kg); envelope 54.3 L x 55.9 W x 40.6 H (inches)
  • Patented glycol/seawater cooling system and active control that adapts to sea state
  • Installed internally, with no outside appendages

Applications

  • New-build and refit installations on recreational, sportfishing and yacht hulls

Specifications

Boat size~ 85' - 110'
Max rated speed5,150 RPM
Angular momentum at max rated RPM40,000 N-M-S
Spool-up time to stabilization40 minutes (3,863 RPM)
Operating power1,900 - 4,400 Watts
Power input208-230 VAC @ 30 Amps, 50/60 Hz
Weight4,074 lb (1,848 kg)
Envelope dimensions54.3 L x 55.9 W x 40.6 H (inches)

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