SEAKEEPER RIDE SEA TRIAL REPORT
Vessel Characteristics
| Boat Make | Contender Boats |
| Boat Model | 40 Express |
| Boat Year | 2011 |
| System | Seakeeper Ride 750 Quad |
| Length Overall | 39 ft. 11 in. |
| Beam Overall | 11 ft. 8 in. |
| Engine Configuration | 3x Mercury 400 HP |
| Displacement | 12,700 lbs. |
Test Conditions
| Date | 7/10/2025 |
| Location | Orange Beach, Alabama |
| Average Speed (auto) | 35 mph |
| Average Speed (manual) | 35 mph |
| Seas | Stern Quartering |
| Sea Conditions | 2 ft. at 3 seconds |
Performance Results
44%
ROLL ELIMINATION
36%
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.
