SEAKEEPER RIDE SEA TRIAL REPORT
Vessel Characteristics
| Boat Make | Ribeye |
| Boat Model | Prime NINE41 |
| Boat Year | 2026 |
| System | Seakeeper Ride 525 |
| Length Overall | 30 ft. 10 in. |
| Beam Overall | 8 ft. 0 in. |
| Engine Configuration | 2x Yamaha 350 HP |
| Displacement | 6,063 lbs. |
Test Conditions
| Date | 3/20/2026 |
| Location | Dartmouth, United Kingdom |
| Average Speed (auto) | 40 mph |
| Average Speed (manual) | 40 mph |
| Seas | Following Seas |
| Sea Conditions | 3-4 ft. at 3 seconds |
Performance Results
49%
ROLL ELIMINATION
39%
Pitch ELIMINATION
Roll Rate Comparison
Pitch Rate Comparison
Performance results are measured with the system on and off as a reduction of standard
deviation in pitch and roll rates at all frequencies at a constant heading and speed.
