NB 99 – Alsin
| Vessel type | Special purpose vessel. |
| Vessel name | Alsin. |
| Delivery | November, 2002. |
| Description | Supply and tug vessel to the navy. |
| Hull material | Steel. |
| Tonnage | N/A. |
| Length over all | 16 m. |
| Breadth beam | 6,5 m. |
| Depth | 3,10 m. |
| Passengers | 3 crews and 12 pass. |
| Main engine | MTU 12V183TE62, 748HK. |
| Aux. Engine | N/A. |
| Speed | 10 knots. |
| Propulsion | Hundested. |
| Classification | DNV. |
| Other equipment | Available. |