from Starfleet Prototype – The Journal of Innovative Design and Ideas, David Schmidt & Mastercom Data Center
| Construction Data: | ||||
| Model – | Mk I | Mk II | Mk III | Mk IV |
| Ship Class – | XII | XII | XII | XII |
| Date Entering Service – | 2288 | 2291 | 2333 | 2342 |
| Number Constructed – | 7 | 6 | 0 | 0 |
| Hull Data: | ||||
| Superstructure Points – | 54 | 54 | 54 | 54 |
| Damage Chart – | C | C | C | C |
| Size: | ||||
| Length – | 307.6 m | 307.6 m | 307.6 m | 307.6 m |
| Width – | 141.7 m | 141.7 m | 141.7 m | 141.7 m |
| Height – | 66.3 m | 66.3 m | 66.3 m | 66.3 m |
| Weight – | 200,822 mt | 202,100 mt | 204,690 mt | 208,980 mt |
| Cargo: | ||||
| Total SCU – | 650 SCU | 650 SCU | 650 SCU | 650 SCU |
| Cargo Capacity – | 32,500 mt | 32,500 mt | 32,500 mt | 32,500 mt |
| Landing Capacity – | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type – | M-7a | M-8 | M-8B | M-9A |
| Transporters: | ||||
| Standard 6-person – | 4 | 4 | 4 | 4 |
| Emergency 22-person – | 4 | 4 | 4 | 4 |
| Cargo – | 3 | 3 | 3 | 3 |
| Other Data: | ||||
| Crew – | 525 | 525 | 525 | 525 |
| Passengers – | 80 | 80 | 80 | 80 |
| Shuttlecraft – | 24 | 24 | 24 | 24 |
| Engines And Power Data: | ||||
| Total Power Units Available – | 72 | 76 | 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-3 | FIG-1 | FIG-1 | FIG-2 |
| Power Units Available – | 20 | 24 | 24 | 32 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type – | FH-11 | FH-11 | FH-18 | FH-18 |
| Number – | 7 | 7 | 7 | 7 |
| Firing Arcs – | 2 f/p, 2 f, 2 f/s, 1 p/a/s | 2 f/p, 2 f, 2 f/s, 1 p/a/s | 2 f/p, 2 f, 2 f/s, 1 p/a/s | 2 f/p, 2 f, 2 f/s, 1 p/a/s |
| Firing Chart – | Y | Y | Y | Y |
| Maximum Power – | 10 | 10 | 12 | 12 |
| Damage Modifiers: | ||||
| +3 | (1-10) | (1-10) | (1-10) | (1-10) |
| +2 | (11-17) | (11-17) | (11-17) | (11-17) |
| +1 | (18-24) | (18-24) | (18-24) | (18-24) |
| Beam Weapon Type – | FMH-4 | FMH-8 | FMH-9 | FMH-9 |
| Number – | 2 | 2 | 2 | 2 |
| Firing Arcs – | 1 a | 1 a | 1 a | 1 a |
| Firing Chart – | S | S | T | T |
| Maximum Power – | 16 | 20 | 25 | 25 |
| Damage Modifiers: | ||||
| +3 | (1-8) | (1-8) | (1-5) | (1-5) |
| +2 | (9-14) | (9-14) | (6-12) | (6-12) |
| +1 | (15-18) | (15-18) | (13-18) | (13-18) |
| Torpedo Weapon Type – | FP-5 | FP-4 | FP-4 | FP-9 |
| Number – | 8 | 8 | 8 | 4 |
| Firing Arcs – | 4 f, 4 a | 4 f, 4 a | 4 f, 4 a | 2 f, 2 a |
| Firing Chart – | R | S | S | R |
| Power to Arm – | 1 | 1 | 1 | 1 |
| Damage – | 16 | 20 | 20 | 28 |
| Torpedo Weapon Type – | – | – | – | FP-4 |
| Number – | – | – | – | 4 |
| Firing Arcs – | – | – | – | 2 f, 2 a |
| Firing Chart – | – | – | – | S |
| Power to Arm – | – | – | – | 1 |
| Damage – | – | – | – | 20 |
| Shield Data: | ||||
| Deflector Shield Type – | FSS | FSS | FSQ | FSQ |
| Shield Point Ratio – | 1/4 | 1/4 | 1/4 | 1/4 |
| Maximum Shield Power – | 20 | 20 | 30 | 30 |
| Combat Efficiency: | ||||
| D – | 207.2 | 213.2 | 229.2 | 241.2 |
| WDF – | 176.5 | 205.7 | 226.5 | 243.3 |