from Starfleet Prototype – The Journal of Innovative Design and Ideas, David Schmidt & Mastercom Data Center
| Construction Data: | ||||
| Model – | Mk I | Mk III | MK IV | Mk V |
| Ship Class – | XII | XII | XII | XII |
| Date Entering Service – | 2284 | 2297 | 2338 | 2360 |
| Number Constructed – | 9 | Refit | Refit | Refit |
| Hull Data: | ||||
| Superstructure Points – | 42 | 46 | 52 | 56 |
| Damage Chart – | C | C | C | C |
| Size: | ||||
| Length – | 290 m | 290 m | 290 m | 290 m |
| Width – | 141 m | 141 m | 141 m | 141 m |
| Height – | 65 m | 65 m | 65 m | 65 m |
| Weight – | 181,953 mt | 187,643 mt | 208,036 mt | 206,678 mt |
| Cargo: | ||||
| Total SCU – | 510 SCU | 510 SCU | 510 SCU | 510 SCU |
| Cargo Capacity – | 25,500 mt | 25,500 mt | 25,500 mt | 25,500 mt |
| Landing Capacity – | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type – | M-7 | M-7a | M-9A | I-8 |
| Transporters: | ||||
| Standard 6-person – | 3 | 3 | 3 | 3 |
| Emergency 22-person – | 4 | 4 | 4 | 4 |
| Cargo – | 3 | 3 | 3 | 3 |
| Other Data: | ||||
| Crew – | 468 | 468 | 468 | 468 |
| Passengers – | 40 | 40 | 40 | 40 |
| Shuttlecraft – | 24 | 24 | 24 | 24 |
| Engines And Power Data: | ||||
| Total Power Units Available – | 68 | 72 | 76 | 84 |
| Movement Point Ratio – | 4/1 | 4/1 | 4/1 | 4/1 |
| Warp Engine Type – | FWG-1 | FWG-1 | FWG-1 | FWG-1 |
| Number – | 2 | 2 | 2 | 2 |
| Power Units Available – | 26 ea. | 26 ea. | 26 ea. | 26 ea. |
| Stress Chart – | D/F | D/F | D/F | D/F |
| Max Safe Cruising Speed – | Warp 8 | Warp 8 | Warp 8 | Warp 8 |
| Emergency Speed – | Warp 10 | Warp 10 | Warp 10 | Warp 10 |
| Impulse Engine Type – | FIF-2 | FIF-3 | FIG-1 | FIG-2 |
| Power Units Available – | 16 | 20 | 24 | 32 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type – | FH-11 | FH-11 | FH-19 | FNH-29 |
| Number – | 6 | 6 | 6 | 6 |
| Firing Arcs – | 2 f/p, 2 f, 2 f/s | 2 f/p, 2 f, 2 f/s | 2 f/p, 2 f, 2 f/s | 2 f/p, 2 f, 2 f/s |
| Firing Chart – | Y | Y | Y | Y |
| Maximum Power – | 10 | 10 | 14 | 21 |
| Damage Modifiers: | ||||
| +3 | (1-10) | (1-10) | (1-10) | (-) |
| +2 | (11-17) | (11-17) | (11-17) | (-) |
| +1 | (18-24) | (18-24) | (18-24) | (1-22) |
| Beam Weapon Type – | FH-3 | FH-10 | FH-11 | FNH-15 |
| Number – | 3 | 3 | 3 | 3 |
| Firing Arcs – | 1 p/a, 1 s/a, 1 p/a/s | 1 p/a, 1 s/a, 1 p/a/s | 1 p/a, 1 s/a, 1 p/a/s | 1 p/a, 1 s/a, 1 p/a/s |
| Firing Chart – | W | W | Y | W |
| Maximum Power – | 5 | 7 | 10 | 15 |
| Damage Modifiers: | ||||
| +3 | (1-10) | (1-10) | (1-10) | (1-7) |
| +2 | (11-17) | (11-17) | (11-17) | (8-15) |
| +1 | (18-20) | (18-20) | (18-24) | (16-20) |
| Torpedo Weapon Type – | FP-4 | FP-9 | FP-12 | FP-30 |
| Number – | 2 | 2 | 2 | 2 |
| Firing Arcs – | 2 f | 2 f | 2 f | 2 f |
| Firing Chart – | S | R | S | T |
| Power to Arm – | 1 | 1 | 1 | 1 |
| Damage – | 20 | 28 | 38 | 40 |
| Shield Data: | ||||
| Deflector Shield Type – | FSS | FSQ | FST | FNSQ |
| Shield Point Ratio – | 1/4 | 1/4 | 1/4 | 1/5 |
| Maximum Shield Power – | 20 | 30 | 45 | 41 |
| Combat Efficiency: | ||||
| D – | 184.1 | 211.8 | 246.4 | 290.1 |
| WDF – | 106.6 | 119.5 | 165.5 | 202.5 |