design from Federation Reference
NOTES:
Known Sphere Of Operation: Triangle; Federation and Klingon Border
Data Reliability: C
Major Data Source: Klingon Sector Intelligence
| Construction Data: | ||||
| Model Number — | Variant-1 | Variant-2 | Variant-3 | Variant-4 |
| Ship Class — | V | VI | VI | VI |
| Date Entering Service — | 2260-2298 | 2301-2334 | 2336-2359 | 2361-2378 |
| Number Constructed — | 1 | Refit | Refit | Refit |
| Hull Data: | ||||
| Superstructure Points — | 25 | 28 | 28 | 30 |
| Damage Chart — | C | C | C | C |
| Size: | ||||
| Length — | 184.5 m | 184.5 m | 184.5 m | 184.5 m |
| Width — | 73.6 m | 73.6 m | 73.6 m | 73.6 m |
| Height — | 27.5 m | 27.5 m | 27.5 m | 27.5 m |
| Weight — | 53,415 mt | 78,350 mt | 78,200 mt | 78,225 mt |
| Cargo: | ||||
| Cargo Units — | 5 SCU | 5 SCU | 5 SCU | 5 SCU |
| Cargo Capacity — | 2,250 mt | 2,250 mt | 2,250 mt | 2,250 mt |
| Landing Capacity — | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type — | ZD-4 | ZD-5 | ZD-5 | ZI-1 |
| Transporters: | ||||
| Standard 6-person — | 1 | 1 | 1 | 1 |
| Cargo — | 1 | 1 | 1 | 1 |
| Cloaking Device Type — | – | KCB | KCB | KCB |
| Power Requirements — | – | 22 | 22 | 22 |
| Other Data: | ||||
| Crew — | 28 | 28 | 28 | 28 |
| Engines And Power Data: | ||||
| Total Power Units Available — | 26 | 38 | 50 | 50 |
| Movement Point Ratio — | 4/1 | 4/1 | 4/1 | 4/1 |
| Warp Engine Type — | KWA-1 | KWB-1 | KWB-1 | KWB-1 |
| Number — | 4 | 4 | 4 | 4 |
| Power Units Available — | 5 ea. | 8 ea. | 8 ea. | 8 ea. |
| Stress Charts — | Q/R | Q/R | Q/R | Q/R |
| Max Safe Cruising Speed — | Warp 6 | Warp 6 | Warp 6 | Warp 6 |
| Emergency Speed — | Warp 7 | Warp 8 | Warp 8 | Warp 8 |
| Impulse Engine Type — | KID-1 | KID-1 | KIE-3 | KIE-3 |
| Power Units Available — | 6 | 6 | 18 | 18 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type — | KD-5 | KD-6 | KD-6 | KD-17 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 2 f/p, 2 f/s | 2 f/p, 2 f/s | 2 f/p, 2 f/s | 2 f/p, 2 f/s |
| Firing Chart — | P | T | T | X |
| Maximum Power — | 4 | 6 | 6 | 9 |
| Damage Modifiers: | ||||
| +3 | (-) | (-) | (-) | (1-12) |
| +2 | (1-10) | (1-18) | (1-18) | (13-17) |
| +1 | (11-18) | (-) | (-) | (18-22) |
| Beam Weapon Type — | KD-6 | KD-8 | KD-17 | KD-18 |
| Number — | 1 | 1 | 1 | 1 |
| Firing Arcs — | 1 p/f/s | 1 p/f/s | 1 p/f/s | 1 p/f/s |
| Firing Chart — | T | U | X | U |
| Maximum Power — | 6 | 7 | 9 | 11 |
| Damage Modifiers: | ||||
| +3 | (-) | (1-7) | (1-12) | (1-7) |
| +2 | (1-18) | (8-15) | (13-17) | (8-15) |
| +1 | (-) | (16-20) | (18-22) | (16-20) |
| Beam Weapon Type — | KD-8 | KD-15 | KD-15 | KD-15 |
| Number — | 1 | 1 | 1 | 1 |
| Firing Arcs — | 1 f | 1 f | 1 f | 1 f |
| Firing Chart — | U | T | T | T |
| Maximum Power — | 7 | 10 | 10 | 10 |
| Damage Modifiers: | ||||
| +3 | (1-7) | (-) | (-) | (-) |
| +2 | (8-15) | (1-18) | (1-18) | (1-18) |
| +1 | (16-20) | (-) | (-) | (-) |
| Shield Data: | ||||
| Deflector Shield Type — | KSN | KSK | KSV | KST |
| Shield Point Ratio — | 2/3 | 1/2 | 1/2 | 1/3 |
| Maximum Shield Power — | 15 | 13 | 20 | 32 |
| Combat Efficiency: | ||||
| D — | 71.0 | 85.0 | 104.0 | 141.9 |
| WDF — | 23.2 | 34.2 | 37.1 | 52.5 |