from Star Trek Flight Chronology, Pocket Books
| Construction Data: | |||
| Model Number — | Mk I | Mk III | Mk IV |
| Ship Class — | VIII | VIII | VIII |
| Date Entering Service — | 2249 | 2253 | 2257 |
| Number Constructed — | 22 | Refit | Refit |
| Hull Data: | |||
| Superstructure Points — | 20 | 20 | 20 |
| Damage Chart — | C | C | C |
| Size: | |||
| Length — | 242 m | 242 m | 242 m |
| Width — | 80 m | 80 m | 80 m |
| Height — | 30 m | 30 m | 30 m |
| Weight — | 118,940 mt | 119,600 mt | 117,035 mt |
| Cargo: | |||
| Cargo Units — | 230 SCU | 230 SCU | 310 SCU |
| Cargo Capacity — | 11,500 mt | 11,500 mt | 15,500 mt |
| Landing Capacity — | None | None | None |
| Equipment Date: | |||
| Control Computer Type — | M-3 | M-3 | M-3 |
| Transporters: | |||
| Standard 6-person — | 2 | 2 | 2 |
| Emergency 22-person — | 2 | 2 | 2 |
| Cargo — | 1 | 1 | 1 |
| Other Data: | |||
| Crew — | 235 | 242 | 327 |
| Passengers — | 10 | 10 | 10 |
| Shuttlecraft — | 2 | 2 | 2 |
| Engines And Power Data: | |||
| Total Power Units Available — | 22 | 32 | 32 |
| Movement Point Ratio — | 3/1 | 3/1 | 3/1 |
| Warp Engine Type — | FWE-1 | FWE-2 | FWE-2 |
| Number — | 2 | 2 | 2 |
| Power Units Available — | 8 ea. | 13 ea. | 13 ea. |
| Stress Charts — | G/K | G/K | G/K |
| Max Safe Cruising Speed — | Warp 7 | Warp 7 | Warp 7 |
| Emergency Speed — | Warp 9 | Warp 9 | Warp 9 |
| Impulse Engine Type — | FIC-3 | FIC-3 | FIC-3 |
| Power Units Available — | 6 | 6 | 6 |
| Weapons And Firing Data: | |||
| Beam Weapon Type — | FL-6 | FL-6 | FH-4 |
| Number — | 4 | 4 | 4 |
| Firing Arcs — | 2 f/p, 2 f/s | 2 f/p, 2 f/s | 2 f/p, 2 f/s |
| Firing Chart — | H | H | Q |
| Maximum Power — | 3 | 3 | 3 |
| Damage Modifiers: | |||
| +3 | (-) | (-) | (-) |
| +2 | (1-4) | (1-4) | (1-8) |
| +1 | (5-7) | (5-7) | (9-14) |
| Torpedo Weapon Type — | – | FAC-2 | FP-1 |
| Number — | – | 1 | 1 |
| Firing Arcs — | – | 1 f | 1 f |
| Firing Chart — | – | G | L |
| Power to Arm — | – | 4 | 1 |
| Damage — | – | 10 | 10 |
| Shield Data: | |||
| Deflector Shield Type — | FSG | FSG | FSK |
| Shield Point Ratio — | 1/1 | 1/1 | 1/2 |
| Maximum Shield Power — | 10 | 10 | 16 |
| Combat Efficiency: | |||
| D — | 53.1 | 58.1 | 82.6 |
| WDF — | 5.6 | 8.3 | 14.8 |