Builder class Medium Colony Ship

Engines: 8 Heavy Impulse Engines
FTL Drive: 2 Jump Drive Mk.II (Heavy Versions)
Length: 20 kilometers
Width: 10 kilometers
Armor: Good capital ship armor
Weapons: 16 light Incinerator Beams
Shields: Energy shields (at 150000)
Max. crew: 200
Min. crew: 2
Cargo space: 15 km³
Capability of Planetary Landing: Yes
Capability of Atmospheric Flight: Yes
Reactors: 2 High-Capacity Antimatter Reactors, 2 High-Capacity Fusion Reactors

There's only one of these in the whole IPA starfleet. Sometimes it has been used as a transport. There were two of these, but the other one was used to build a colony on Yridia Three.