NOTES:
Of the 61 London class troop transports built, 9 Mk IVs are in reserve fleets. 5 Mk Is and 1 Mk III have been destroyed. 2 Mk Is were captured by the Klingons during the Four-Years War. 7 Mk Is, 2 Mk IIs, 1 Mk III and 4 Mk IVs have been scrapped. 10 Mk IIs and 20 Mk IVs were disarmed and sold to civilian concerns.
| Construction Data: | ||||
| Model Number — | Mk I | MK II | MK III | Mk IV |
| Ship Class — | IX | IX | IX | IX |
| Date Entering Service — | 2244 | 2253 | 2262 | 2268 |
| Number Constructed — | 29 | 23 | 9 | 0 |
| Hull Data: | ||||
| Superstructure Points — | 20 | 20 | 20 | 20 |
| Damage Chart — | C | C | C | C |
| Size: | ||||
| Length — | 308.5 m | 308.5 m | 308.5 m | 308.5 m |
| Width — | 153.5 m | 153.5 m | 153.5 m | 153.5 m |
| Height — | 81.1 m | 81.1 m | 81.1 m | 81.1 m |
| Weight — | 138,885 mt | 139,805 mt | 137,705 mt | 138,648 mt |
| Cargo: | ||||
| Cargo Units — | 450 SCU | 450 SCU | 450 SCU | 450 SCU |
| Cargo Capacity — | 22,500 mt | 22,500 mt | 22,500 mt | 22,500 mt |
| Landing Capacity — | None | None | None | None |
| Equipment Date: | ||||
| Control Computer Type — | M-3 | M-3 | M-3 | M-3 |
| Transporters: | ||||
| Standard 6-person — | 3 | 3 | 3 | 3 |
| Combat 20-person — | 6 | 6 | 6 | 6 |
| Emergency 22-person — | 4 | 4 | 4 | 4 |
| Cargo — | 4 | 4 | 4 | 4 |
| Other Data: | ||||
| Crew — | 248 | 253 | 253 | 258 |
| Troops — | 950 | 950 | 950 | 950 |
| Passengers — | 20 | 20 | 20 | 20 |
| Shuttlecraft — | 6 | 6 | 6 | 6 |
| Engines And Power Data: | ||||
| Total Power Units Available — | 28 | 30 | 32 | 36 |
| Movement Point Ratio — | 3/1 | 3/1 | 3/1 | 3/1 |
| Warp Engine Type — | FWD-1 | FWD-1 | FWD-1 | FWD-1 |
| Number — | 2 | 2 | 2 | 2 |
| Power Units Available — | 12 ea. | 12 ea. | 12 ea. | 12 ea. |
| Stress Charts — | L/G | L/G | L/G | L/G |
| Max Safe Cruising Speed — | Warp 7 | Warp 7 | Warp 7 | Warp 7 |
| Emergency Speed — | Warp 9 | Warp 9 | Warp 9 | Warp 9 |
| Impulse Engine Type — | FIB-2 | FIB-3 | FIE-2 | FIF-1 |
| Power Units Available — | 4 | 6 | 8 | 12 |
| Weapons And Firing Data: | ||||
| Beam Weapon Type — | FL-3 | FL-5 | FH-7 | FH-8 |
| Number — | 4 | 4 | 4 | 4 |
| Firing Arcs — | 1 f/p, 1 f/s, 2 a | 1 f/p, 1 f/s, 2 a | 1 f/p, 1 f/s, 2 a | 1 f/p, 1 f/s, 2 a |
| Firing Chart — | G | H | Q | T |
| Maximum Power — | 2 | 2 | 4 | 5 |
| Damage Modifiers: | ||||
| +3 | (-) | (-) | (-) | (-) |
| +2 | (-) | (1-4) | (1-8) | (1-10) |
| +1 | (1-4) | (5-7) | (9-14) | (11-18) |
| Beam Weapon Type — | FL-1 | FL-3 | FH-4 | FH-5 |
| Number — | 2 | 2 | 2 | 2 |
| Firing Arcs — | 1 p/a, 1 s/a | 1 p/a, 1 s/a | 1 p/a, 1 s/a | 1 p/a, 1 s/a |
| Firing Chart — | D | G | Q | R |
| Maximum Power — | 2 | 2 | 3 | 4 |
| Damage Modifiers: | ||||
| +3 | (-) | (-) | (-) | (-) |
| +2 | (-) | (-) | (1-8) | (1-8) |
| +1 | (-) | (1-4) | (9-14) | (9-16) |
| Shield Data: | ||||
| Deflector Shield Type — | FSG | FSG | FSH | FSI |
| Shield Point Ratio — | 1/1 | 1/1 | 1/2 | 1/3 |
| Maximum Shield Power — | 10 | 10 | 12 | 12 |
| Combat Efficiency: | ||||
| D — | 56.1 | 57.1 | 76.6 | 97.6 |
| WDF — | 3.2 | 5.2 | 17.6 | 23.4 |