Class design by Gene Templeton
NOTES:
Known Sphere Of Operation: Triangle; Federation and Romulan Border
Data Reliability: C
Major Data Source: Triangle Sector Intelligence
| Construction Data: | ||||
| Model Number — | Variant-1 | Variant-2 | Variant-3 | Variant-4 |
| Ship Class — | IV | IV | IV | IV |
| Date Entering Service — | 2264-2290 | 2292-2322 | 2324-2351 | 2353-2369 |
| Number Constructed — | 1 | Refit | Refit | Refit |
| Hull Data: | ||||
| Superstructure Points — | 11 | 11 | 11 | 11 |
| Damage Chart — | C | C | C | C |
| Size: | ||||
| Length — | 146.5 m | 146.5 m | 146.5 m | 146.5 m |
| Width — | 77 m | 77 m | 77 m | 77 m |
| Height — | 37.1 m | 37.1 m | 37.1 m | 37.1 m |
| Weight — | 31,905 mt | 33,980 mt | 37,815 mt | 38,810 mt |
| Cargo: | ||||
| Cargo Units — | 25 SCU | 25 SCU | 25 SCU | 25 SCU |
| Cargo Capacity — | 1,250 mt | 1,250 mt | 1,250 mt | 1,250 mt |
| Landing Capacity — | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type — | ZD-3 | ZD-4 | ZD-4 | ZI-1 |
| Transporters: | ||||
| Standard 6-person — | 3 | 3 | 3 | 3 |
| Cargo — | 1 | 1 | 1 | 1 |
| Cloaking Device Type — | – | – | KCB | KCB |
| Power Requirements — | – | – | 22 | 22 |
| Other Data: | ||||
| Crew — | 124 | 124 | 124 | 124 |
| Passengers — | 15 | 15 | 15 | 15 |
| Shuttlecraft — | 1 | 1 | 1 | 1 |
| Engines And Power Data: | ||||
| Total Power Units Available — | 21 | 21 | 27 | 27 |
| Movement Point Ratio — | 2/1 | 2/1 | 2/1 | 2/1 |
| Warp Engine Type — | KWB-1 | KWB-1 | KWB-2 | KWB-2 |
| Number — | 2 | 2 | 2 | 2 |
| Power Units Available — | 9 ea. | 9 ea. | 12 ea. | 12 ea. |
| Stress Charts — | O/Q | O/Q | P/Q | P/Q |
| Max Safe Cruising Speed — | Warp 6 | Warp 6 | Warp 8 | Warp 8 |
| Emergency Speed — | Warp 7 | Warp 7 | Warp 9 | Warp 9 |
| Impulse Engine Type — | KIB-1 | KIB-1 | KIB-1 | KIB-1 |
| Power Units Available — | 3 | 3 | 3 | 3 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type — | KD-3 | KD-3 | KD-5 | KD-5 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 1 f/p, 2 f, 1 f/s | 1 f/p, 2 f, 1 f/s | 1 f/p, 2 f, 1 f/s | 1 f/p, 2 f, 1 f/s |
| Firing Chart — | I | I | P | P |
| Maximum Power — | 5 | 5 | 4 | 4 |
| Damage Modifiers: | ||||
| +3 | (-) | (-) | (-) | (-) |
| +2 | (-) | (-) | (1-10) | (1-10) |
| +1 | (1-12) | (1-12) | (11-18) | (11-18) |
| Torpedo Weapon Type — | KP-1 | KP-1 | KP-6 | KP-11 |
| Number — | 1 | 1 | 1 | 1 |
| Firing Arcs — | 1 f | 1 f | 1 f | 1 f |
| Firing Chart — | F | F | R | R |
| Power to Arm — | 1 | 1 | 2 | 1 |
| Damage — | 6 | 6 | 20 | 26 |
| Shield Data: | ||||
| Deflector Shield Type — | KSA | KSD | KSD | KST |
| Shield Point Ratio — | 1/1 | 1/2 | 1/2 | 1/3 |
| Maximum Shield Power — | 5 | 11 | 11 | 32 |
| Combat Efficiency: | ||||
| D — | 37.7 | 61.7 | 69.7 | 117.7 |
| WDF — | 10.3 | 10.3 | 23.8 | 27.4 |