
Meet the

40
For yachts 85–110 feet.
Up to 95% less yacht roll.

TECHNICAL PROFILE
Seakeeper 40 specifications
Engineered for yachts approximately 85–110 feet, the Seakeeper 40 delivers substantial stabilization without external fins or appendages. Multiple units can support larger yacht applications.
MSRP 2026
$365,400
YACHT FIT
~85–110 ft
Recommended yacht length
115 tons
Maximum displacement
54.3 × 55.9 × 40.6 in
Envelope dimensions
SYSTEM
4,074 lb
Unit weight · 1,848 kg
AC
Power source
2 years
Standard warranty · 2,000 hours
PERFORMANCE
5,150 RPM
Maximum rated speed
40,000 N·m·s
Angular momentum
104,720 N·m
Noise output at 1 meter
OPERATION
70 minutes
Spool-up to maximum speed
40 minutes
Ready for stabilization
1,900–4,400 W
Operating power
Spool-up power: 5,000 W maximum. Spool-up times may vary with operating conditions.
MSRP excludes installation and may be subject to tariff pass-through.