SEAKEEPER RIDE SEA TRIAL REPORT

Vessel Characteristics
| Boat Make | Sportsman Boats |
| Boat Model | Open 312 |
| Boat Year | 2020 |
| System | Seakeeper Ride 600 |
| Length Overall | 31 ft. 2 in. |
| Beam Overall | 10 ft. 2 in. |
| Engine Configuration | 2x Yamaha 425 HP |
| Displacement | 7,500 lbs. |
Test Conditions
| Date | 6/22/2026 |
| Location | Fort Myers, Florida |
| Average Speed (auto) | 40 mph |
| Average Speed (manual) | 41 mph |
| Seas | Bow Quartering Seas |
| Sea Conditions | 1 ft at 3 sec |
Performance Results
61%
ROLL ELIMINATION
40%
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.