design by Bernard Reischl, Reischl’s Guide to Ships of the Fleet – Starfleet Command Intelligence Bureau
| Construction Data: | |||
| Model Number — | Mk I | Mk II | Mk III |
| Ship Class — | VI | VI | VI |
| Date Entering Service — | 2253 | 2261 | 2301 |
| Number Constructed — | 32 | 16 | Refit |
| Hull Data: | |||
| Superstructure Points — | 24 | 25 | 25 |
| Damage Chart — | C | C | C |
| Size: | |||
| Length — | 131.6 m | 131.6 m | 131.6 m |
| Width — | 64 m | 64 m | 64 m |
| Height — | 56.6 m | 56.6 m | 56.6 m |
| Weight — | 63,180 mt | 68,320 mt | 71,956 mt |
| Cargo: | |||
| Cargo Units — | 75 SCU | 75 SCU | 75 SCU |
| Cargo Capacity — | 3,750 mt | 3,750 mt | 3,750 mt |
| Landing Capacity — | None | None | None |
| Equipment Date: | |||
| Control Computer Type — | M-1 | M-2 | M-3B |
| Transporters: | |||
| Standard 6-person — | 3 | 3 | 3 |
| Emergency 22-person — | 4 | 4 | 4 |
| Cargo — | 2 | 2 | 2 |
| Other Data: | |||
| Crew — | 119 | 119 | 119 |
| Passengers — | 20 | 20 | 20 |
| Shuttlecraft — | 2 | 2 | 2 |
| Engines And Power Data: | |||
| Total Power Units Available — | 17 | 27 | 30 |
| Movement Point Ratio — | 4/1 | 4/1 | 4/1 |
| Warp Engine Type — | FSLA | FSLB | FSLB |
| Number — | 2 | 2 | 2 |
| Power Units Available — | 8 ea. | 12 ea. | 12 ea. |
| Stress Charts — | N/A | N/A | N/A |
| Max Safe Cruising Speed — | Warp | Warp | Warp |
| Emergency Speed — | Warp | Warp | Warp |
| Impulse Engine Type — | FIC-1 | FIC-2 | FIC-3 |
| Power Units Available — | 1 | 3 | 6 |
| Weapons And Firing Data: | |||
| Beam Weapon Type — | FL-1 | FH-1 | FH-2 |
| Number — | 12 | 12 | 12 |
| Firing Arcs — | 6 p, 6 s | 6 p, 6 s | 6 p, 6 s |
| Firing Chart — | D | F | H |
| Maximum Power — | 2 | 2 | 3 |
| Damage Modifiers: | |||
| +3 | (-) | (-) | (-) |
| +2 | (-) | (-) | (-) |
| +1 | (-) | (-) | (1-10) |
| Beam Weapon Type — | FL-2 | FH-3 | FMH-3 |
| Number — | 2 | 2 | 2 |
| Firing Arcs — | 2 p/f/s/a | 2 p/f/s/a | 2 p/f/s/a |
| Firing Chart — | F | W | O |
| Maximum Power — | 2 | 5 | 14 |
| Damage Modifiers: | |||
| +3 | (-) | (1-10) | (1-6) |
| +2 | (-) | (11-17) | (7-10) |
| +1 | (-) | (18-20) | (11-14) |
| Torpedo Weapon Type — | FAC-1 | FP-2 | FP-8 |
| Number — | 8 | 8 | 8 |
| Firing Arcs — | 4 f, 4 a | 4 f, 4 a | 4 f, 4 a |
| Firing Chart — | F | H | S |
| Power to Arm — | 3 | 1 | 1 |
| Damage — | 8 | 6 | 10 |
| Shield Data: | |||
| Deflector Shield Type — | FSG | FSH | FSO |
| Shield Point Ratio — | 1/1 | 1/2 | 1/3 |
| Maximum Shield Power — | 11 | 13 | 16 |
| Combat Efficiency: | |||
| D — | 56.3 | 72.8 | 89.8 |
| WDF — | 21.8 | 33.6 | 82.4 |