NOTES:
7 Mk IIIs remain in active service despite their age. 48 Mk Is and 33 Mk IIs have been decommissioned. 4 Mk Is, 6 Mk IIs and 1 Mk III have been destroyed. 1 Mk II was lost near Tholian space. 4 Mk Is, 3 Mk IIs and 21 Mk IIIs have been scrapped.
| Construction Data: | |||
| Model Number — | Mk I | Mk II | Mk III |
| Ship Class — | IX | IX | IX |
| Date Entering Service — | 2238 | 2247 | 2255 |
| Number Constructed — | 56 | 43 | 17 |
| Hull Data: | |||
| Superstructure Points — | 12 | 12 | 12 |
| Damage Chart — | C | C | C |
| Size: | |||
| Length — | 215.1 m | 215.1 m | 215.1 m |
| Width — | 108.8 m | 108.8 m | 108.8 m |
| Height — | 38.7 m | 38.7 m | 38.7 m |
| Weight — | 139,810 mt | 120,485 mt | 120,840 mt |
| Cargo: | |||
| Cargo Units — | 3,950 SCU | 3,950 SCU | 3,950 SCU |
| Cargo Capacity — | 197,500 mt | 197,500 mt | 197,500 mt |
| Landing Capacity — | None | None | None |
| Equipment Date: | |||
| Control Computer Type — | M-1A | M-2A | M-3A |
| Transporters: | |||
| Standard 6-person — | 1 | 1 | 1 |
| Emergency 22-person — | 1 | 1 | 1 |
| Cargo — | 6 | 6 | 6 |
| Other Data: | |||
| Crew — | 93 | 64 | 68 |
| Passengers — | 10 | 25 | 25 |
| Shuttlecraft — | 3 | 3 | 3 |
| Engines And Power Data: | |||
| Total Power Units Available — | 32 | 27 | 27 |
| Movement Point Ratio: | |||
| unloaded — | 3/1 | 3/1 | 3/1 |
| loaded — | 8/1 | 6/1 | 6/1 |
| Warp Engine Type — | FFTL-7 | FWD-1 | FWD-1 |
| Number — | 2 | 2 | 2 |
| Power Units Available: | 14 ea. | 12 ea. | 12 ea. |
| Stress Chart – | N/M | L/G | L/G |
| Max Safe Cruising Speed – | |||
| unloaded – | Warp 4 | Warp 7 | Warp 7 |
| loaded- | Warp 2 | Warp 5 | Warp 5 |
| Emergency Speed – | |||
| unloaded – | Warp 5 | Warp 9 | Warp 9 |
| loaded – | Warp 3 | Warp 6 | Warp 6 |
| Impulse Engine Type – | FIB-2 | FIC-2 | FIC-2 |
| Power Units Available – | 4 | 3 | 3 |
| Shield Data: | |||
| Deflector Shield Type – | FSA | FSE | FSF |
| Shield Point Ratio – | 1/1 | 1/1 | 1/2 |
| Maximum Shield Power – | 3 | 8 | 8 |
| Combat Efficiency: | |||
| D – | |||
| unloaded – | 36.7 | 41.7 | 55.2 |
| loaded – | 27.2 | 35.2 | 42.2 |
| WDF – | 0.0 | 0.0 | 0.0 |

