NOTES:
2 Mk IIs remain in active service but are believed to have been heavily modified from their original design. 36 Mk Is and 29 Mk IIs have been decommissioned. 8 Mk Is and 10 Mk IIs have been sold to non-Federation entities. 7 Mk Is and 4 Mk IIs have been destroyed. 1 Mk II was captured by Orion forces. 1 Mk I is listed as missing. 2 of each version have been scrapped.
| Construction Data: | ||
| Model Number — | Mk I | Mk II |
| Ship Class — | VIII | VIII |
| Date Entering Service — | 2247 | 2257 |
| Number Constructed — | 54 | 48 |
| Hull Data: | ||
| Superstructure Points — | 12 | 12 |
| Damage Chart — | C | C |
| Size: | ||
| Length — | 267.7 m | 267.7 m |
| Width — | 129.5 m | 129.5 m |
| Height — | 35.2 m | 35.2 m |
| Weight — | 104,285 mt | 104,760 mt |
| Internal Cargo: | ||
| Cargo Units — | 565 SCU | 565 SCU |
| Cargo Capacity — | 28,250 mt | 28,250 mt |
| External Cargo: | ||
| Cargo Units — | 3,185 SCU | 3,185 SCU |
| Cargo Capacity — | 159,250 mt | 159,250 mt |
| Landing Capacity — | None | None |
| Equipment Date: | ||
| Control Computer Type — | M-2 | M-2 |
| Transporters: | ||
| Standard 6-person — | 2 | 2 |
| Emergency 22-person — | 2 | 2 |
| Cargo — | 2 | 2 |
| Other Data: | ||
| Crew — | 125 | 128 |
| Passengers — | 15 | 15 |
| Shuttlecraft — | 2 | 2 |
| Engines And Power Data: | ||
| Total Power Units Available — | 19 | 22 |
| Movement Point Ratio: | ||
| unloaded — | 3/1 | 3/1 |
| loaded — | 6/1 | 6/1 |
| Warp Engine Type — | FWE-1 | FWE-1 |
| Number — | 2 | 2 |
| Power Units Available: | 8 ea. | 8 ea. |
| Stress Chart – | G/K | G/K |
| Max Safe Cruising Speed – | ||
| unloaded – | Warp 7 | Warp 7 |
| loaded- | Warp 5 | Warp 5 |
| Emergency Speed – | ||
| unloaded – | Warp 9 | Warp 9 |
| loaded – | Warp 6 | Warp 6 |
| Impulse Engine Type – | FIC-2 | FIC-3 |
| Power Units Available – | 3 | 6 |
| Weapons And Firing Data: | ||
| Beam Weapon Type – | FL-1 | FL-2 |
| Number – | 4 | 4 |
| Firing Arcs – | 2 p, 2 s | 2 p, 2 s |
| Firing Chart – | D | F |
| Maximum Power – | 2 | 2 |
| Damage Modifiers: | ||
| +3 | (-) | (-) |
| +2 | (-) | (-) |
| +1 | (-) | (-) |
| Shield Data: | ||
| Deflector Shield Type – | FSE | FSG |
| Shield Point Ratio – | 1/1 | 1/1 |
| Maximum Shield Power – | 9 | 10 |
| Combat Efficiency: | ||
| D – | ||
| unloaded – | 37.7 | 40.2 |
| loaded – | 39.2 | 41.7 |
| WDF – | 1.6 | 2.0 |