| Tyne | Tamar | |
| Length | 14.3m (47ft) | 16m |
| Speed | 17.6 knots | 25 knots |
| Displacement | 25.5 - 26.5 tonnes | 30 tonnes |
| Construction | Steel | Fibre Reinforced Plastic (FRP) |
| Range | 240 nautical miles | 250 nautical miles |
| Crew | 7 | 6-7 |
| Tyne | Tamar | |
| Length | 14.3m (47ft) | 16m |
| Speed | 17.6 knots | 25 knots |
| Displacement | 25.5 - 26.5 tonnes | 30 tonnes |
| Construction | Steel | Fibre Reinforced Plastic (FRP) |
| Range | 240 nautical miles | 250 nautical miles |
| Crew | 7 | 6-7 |