SEAKEEPER RIDE SEA TRIAL REPORT

Vessel Characteristics
| Boat Make | Yellowfin |
| Boat Model | 42 Offshore |
| Boat Year | 2025 |
| System | Seakeeper Ride 750 Quad |
| Length Overall | 42 ft. 0 in. |
| Beam Overall | 12 ft. 0 in. |
| Engine Configuration | 3x Mercury 400 HP |
| Displacement | 15,000 lbs. |
Test Conditions
| Date | 5/21/2025 |
| Location | Tampa, FL |
| Average Speed (auto) | 42 mph |
| Average Speed (manual) | 42 mph |
| Seas | Stern Quartering |
| Sea Conditions | 1 ft at 4 sec |
Performance Results
25%
ROLL ELIMINATION
37%
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.

