NOTES:
Known Sphere Of Operation: Klingon Border
Data Reliability: D
Major Data Source: Romulan Sector Intelligence
| Construction Data: | ||||
| Model Number — | Type-1 | Type-2 | Type-3 | Type-4 |
| Ship Class — | IX | IX | IX | IX |
| Date Entering Service — | 2253 | 2257 | 2292 | 2342 |
| Number Constructed — | 1 | Refit | Refit | Refit |
| Hull Data: | ||||
| Superstructure Points — | 35 | 35 | 38 | 38 |
| Damage Chart — | B | B | B | B |
| Size: | ||||
| Length — | 251 m | 251 m | 251 m | 251 m |
| Width — | 147.7 m | 147.7 m | 147.7 m | 147.7 m |
| Height — | 44.6 m | 44.6 m | 44.6 m | 44.6 m |
| Weight — | 120,280 mt | 124,290 mt | 130,220 mt | 130,207 mt |
| Cargo: | ||||
| Cargo Units — | 220 SCU | 220 SCU | 220 SCU | 220 SCU |
| Cargo Capacity — | 11,000 mt | 11,000 mt | 11,000 mt | 11,000 mt |
| Landing Capacity — | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type — | R-4M | R-5m | R-5M-1 | R-5M-1 |
| Transporters: | ||||
| Standard 9-person — | 3 | 3 | 3 | 3 |
| Emergency 20-person — | 3 | 3 | 3 | 3 |
| Cargo — | 2 | 2 | 2 | 2 |
| Cloaking Device Type — | – | – | RCC | RCC |
| Power Requirements — | – | – | 15 | 15 |
| Other Data: | ||||
| Crew — | 273 | 281 | 304 | 304 |
| Troops — | 80 | 80 | 80 | 80 |
| Passengers — | 15 | 15 | 15 | 15 |
| Shuttlecraft — | 8 | 8 | 8 | 8 |
| Engines And Power Data: | ||||
| Total Power Units Available — | 41 | 48 | 52 | 52 |
| Movement Point Ratio — | 4/1 | 4/1 | 3/1 | 3/1 |
| Warp Engine Type — | KWD-1 | KWD-1 | RWD-1 | RWD-1 |
| Number — | 2 | 2 | 2 | 2 |
| Power Units Available — | 18 ea. | 18 ea. | 16 ea. | 16 ea. |
| Stress Charts — | L/N | L/N | O/O | O/O |
| Max Safe Cruising Speed — | Warp 6 | Warp 6 | Warp 6 | Warp 6 |
| Emergency Speed — | Warp 8 | Warp 8 | Warp 8 | Warp 8 |
| Impulse Engine Type — | RIC-3 | RID-3 | RIG-1 | RIG-1 |
| Power Units Available — | 5 | 12 | 20 | 20 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type — | RB-3a | RB-8 | RB-10 | RB-12 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 1 f/p, 1 f/s, 1 p, 1 s | 1 f/p, 1 f/s, 1 p, 1 s | 1 f/p, 1 f/s, 1 p, 1 s | 1 f/p, 1 f/s, 1 p, 1 s |
| Firing Chart — | L | N | U | W |
| Maximum Power — | 6 | 6 | 8 | 9 |
| Damage Modifiers: | ||||
| +3 | (1-3) | (1-4) | (1-8) | (1-10) |
| +2 | (4-8) | (5-9) | (9-16) | (11-15) |
| +1 | (9-12) | (10-13) | (17-20) | (16-20) |
| Beam Weapon Type — | RB-2 | RB-3a | RB-8 | RB-9 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 2 f, 1 p/a, 1 s/a | 2 f, 1 p/a, 1 s/a | 2 f, 1 p/a, 1 s/a | 2 f, 1 p/a, 1 s/a |
| Firing Chart — | K | L | N | W |
| Maximum Power — | 2 | 6 | 6 | 6 |
| Damage Modifiers: | ||||
| +3 | (-) | (1-3) | (1-4) | (1-8) |
| +2 | (-) | (4-8) | (5-9) | (9-16) |
| +1 | (-) | (9-12) | (10-13) | (17-20) |
| Torpedo Weapon Type — | – | – | RP-5 | RP-12 |
| Number — | – | – | 2 | 2 |
| Firing Arcs — | – | – | 1 f, 1 a | 1 f, 1 a |
| Firing Chart — | – | – | R | S |
| Power to Arm — | – | – | 1 | 1 |
| Damage — | – | – | 15 | 22 |
| Shield Data: | ||||
| Deflector Shield Type — | RSC | RSN | RSP | RSY |
| Shield Point Ratio — | 1/2 | 1/2 | 1/3 | 1/3 |
| Maximum Shield Power — | 4 | 15 | 18 | 27 |
| Combat Efficiency: | ||||
| D — | 86.1 | 106.1 | 151.8 | 165.3 |
| WDF — | 17.6 | 30.4 | 61.4 | 88.2 |

