design by Bill Krause, graphics by Admiral Buck
| Construction Data: | ||||
| Model Number — | Mk I | Mk II | Mk III | Mk IV |
| Ship Class — | XII | XII | XII | XII |
| Date Entering Service — | 2286 | 2297 | 2342 | 2354 |
| Number Constructed — | 26 | 34 | Refit | Refit |
| Hull Data: | ||||
| Superstructure Points — | 50 | 50 | 55 | 60 |
| Damage Chart — | C | C | C | C |
| Size: | ||||
| Length — | 295 m | 295 m | 295 m | 295 m |
| Width — | 142 m | 142 m | 142 m | 142 m |
| Height — | 51.8 m | 51.8 m | 51.8 m | 51.8 m |
| Weight — | 195,896 mt | 196,321 mt | 193,470 mt | 190,820 mt |
| Cargo: | ||||
| Cargo Units — | 396 SCU | 396 SCU | 396 SCU | 396 SCU |
| Cargo Capacity — | 19,800 mt | 19,800 mt | 19,800 mt | 19,800 mt |
| Landing Capacity — | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type — | M-8 | M-8 | M-9A | I-8 |
| Transporters: | ||||
| Standard 6-person — | 4 | 4 | 4 | 4 |
| Emergency 22-person — | 4 | 4 | 4 | 4 |
| Cargo — | 3 | 3 | 3 | 3 |
| Other Data: | ||||
| Crew — | 461 | 466 | 468 | 472 |
| Passengers — | 35 | 35 | 35 | 35 |
| Shuttlecraft — | 12 | 12 | 12 | 12 |
| Engines And Power Data: | ||||
| Total Power Units Available — | 84 | 92 | 102 | 118 |
| Movement Point Ratio — | 4/1 | 4/1 | 5/1 | 5/1 |
| Warp Engine Type — | FWG-1 | FWG-1 | FNWD-2b | FNWD-2b |
| Number — | 2 | 2 | 2 | 2 |
| Power Units Available — | 26 ea. | 26 ea. | 27 ea. | 27 ea. |
| Stress Charts — | D/F | D/F | C/D | C/D |
| Max Safe Cruising Speed — | Warp 8 | Warp 8 | Warp 8 | Warp 8 |
| Emergency Speed — | Warp 10 | Warp 10 | Warp 9 | Warp 9 |
| Impulse Engine Type — | FIF-2 (x2) | FIF-3 (x2) | FIG-1 (x2) | FIJ-4 (x2) |
| Power Units Available — | 16 ea. | 20 ea. | 24 ea. | 32 ea. |
| Weapons And Firing Data: | ||||
| Beam Weapon Type — | FH-11 | FH-11 | FH-19 | FNH-18 |
| Number — | 10 | 10 | 12 | 12 |
| Firing Arcs — | 2 f/p, 2 f, 2 f/s, | 2 f/p, 2 f, 2 f/s, | 3 f/p, 2 f, 3 f/s, | 3 f/p, 2 f, 3 f/s, |
| 2 a, 1 p/a, 1 s/a | 2 a, 1 p/a, 1 s/a | 2 a, 1 p/a, 1 s/a | 2 a, 1 p/a, 1 s/a | |
| Firing Chart — | Y | Y | Y | Y |
| Maximum Power — | 10 | 10 | 14 | 15 |
| Damage Modifiers: | ||||
| +3 | (1-10) | (1-10) | (1-10) | (1-14) |
| +2 | (11-17) | (11-17) | (11-17) | (15-20) |
| +1 | (18-24) | (18-24) | (18-24) | (21-24) |
| Torpedo Weapon Type — | FP-4 | FP-9 | FP-9 | FP-22 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 3 f, 1 a | 3 f, 1 a | 3 f, 1 a | 3 f, 1 a |
| Firing Chart — | S | R | R | R |
| Power to Arm — | 1 | 1 | 1 | 1 |
| Damage — | 20 | 28 | 28 | 35 |
| Shield Data: | ||||
| Deflector Shield Type — | FSS | FSQ | FST | FSU |
| Shield Point Ratio — | 1/4 | 1/4 | 1/4 | 1/4 |
| Maximum Shield Power — | 20 | 30 | 45 | 50 |
| Combat Efficiency: | ||||
| D — | 219.5 | 245.5 | 260.7 | 291.8 |
| WDF — | 157.0 | 173.4 | 238.0 | 268.0 |