design by Neale Davidson
| Construction Data: | ||
| Model Number — | Mk I | Mk II |
| Ship Class — | XI | XI |
| Date Entering Service — | 2244 | 2261 |
| Number Constructed — | 16 | 4 |
| Hull Data: | ||
| Superstructure Points — | 30 | 28 |
| Damage Chart — | C | C |
| Size: | ||
| Length — | 283.9 m | 283.9 m |
| Width — | 127.1 m | 127.1 m |
| Height — | 59.8 m | 59.8 m |
| Weight — | 177,940 mt | 177,665 mt |
| Cargo: | ||
| Cargo Units — | 448 SCU | 448 SCU |
| Cargo Capacity — | 22,400 mt | 22,400 mt |
| Landing Capacity — | None | None |
| Equipment Date: | ||
| Control Computer Type — | M-3 | M-4 |
| Transporters: | ||
| Standard 6-person — | 4 | 4 |
| Emergency 22-person — | 4 | 4 |
| Cargo — | 2 | 2 |
| Other Data: | ||
| Crew — | 518 | 525 |
| Passengers — | 10 | 10 |
| Shuttlecraft — | 5 | 5 |
| Engines And Power Data: | ||
| Total Power Units Available — | 38 | 48 |
| Movement Point Ratio — | 4/1 | 4/1 |
| Warp Engine Type — | FWC-1 | FWF-1 |
| Number — | 2 | 2 |
| Power Units Available — | 16 ea. | 20 ea. |
| Stress Charts — | O/M | G/L |
| Max Safe Cruising Speed — | Warp 6 | Warp 6 |
| Emergency Speed — | Warp 8 | Warp 8 |
| Impulse Engine Type — | FIC-3 | FIE-2 |
| Power Units Available — | 6 | 8 |
| Weapons And Firing Data: | ||
| Beam Weapon Type — | FL-5 | FH-3 |
| Number — | 6 | 6 |
| Firing Arcs — | 2 f/p, 2 f, 2 f/s | 2 f/p, 2 f, 2 f/s |
| Firing Chart — | H | W |
| Maximum Power — | 2 | 5 |
| Damage Modifiers: | ||
| +3 | (-) | (1-10) |
| +2 | (1-4) | (11-17) |
| +1 | (5-7) | (18-20) |
| Beam Weapon Type — | FL-4 | FH-5 |
| Number — | 2 | 2 |
| Firing Arcs — | 1 p, 1 s | 1 p, 1 s |
| Firing Chart — | G | R |
| Maximum Power — | 3 | 4 |
| Damage Modifiers: | ||
| +3 | (-) | (-) |
| +2 | (-) | (1-8) |
| +1 | (1-4) | (9-16) |
| Torpedo Weapon Type — | FAC-2 | FP-1 |
| Number — | 2 | 2 |
| Firing Arcs — | 2 f | 2 f |
| Firing Chart — | G | L |
| Power to Arm — | 4 | 1 |
| Damage — | 10 | 10 |
| Shield Data: | ||
| Deflector Shield Type — | FSG | FSN |
| Shield Point Ratio — | 1/1 | 1/2 |
| Maximum Shield Power — | 9 | 16 |
| Combat Efficiency: | ||
| D — | 69.4 | 97.0 |
| WDF — | 14.0 | 50.2 |