BAYARD 4 - IMO 9646156 -
| Name | : | BAYARD 4 |
| Former names | : | - |
| New names | : | Booster (since 2018) |
| IMO number | : | 9646156 |
| Type | : | windfarm service vessel / crew vessel |
| Built | : | 2012 |
| Length | : | 20,9 m |
| Beam | : | 7 m |
| Draught | : | 2,1 m |
| Speed | : | 25 knots / 28 knots max. |
| Capacity | : | 12 passengers |
| Owner | : | Fred Olsen Windcarrier AS, Fredericia - Denmark |
| Flag | : | Denmark |
| Port of registry | : | Fredericia |
