Hius is a interplanetary and interstellar space vessel based on the Bussard ramjet concept.
Apart from the ramjet it also have a set of chemical accelerators for emergency maneuvring and a pair of boosters for gaining initial speed.
Lower habitable area contains four docking ports for accolyte vessels (DG sized), upper - one access port and bunks for 20 crew.
Hius is UMMU compatible. Installing UMMU is recommended.
See http://orbiter.dansteph.com.
Known bugs:
If you press F8 and camera turns upside-down, press Alt+1.
==update 070823==
Fixed secondary propulsion torque compensation
Fixed lights operation
Fixed docking port mis-located at load
Fixed minor bugs
Power distribution, panel, save/load
Extended crew information
Specifications:
Aux boosters Dv=2.1 Km/s
Aux boosters MaxG=1.8 g
Booster blocks Dv=80 Km/s
Booster blocks MaxG=0.6 g
Central Dv=20 Km/s
Central MaxG=2.1 g
Thrust/drag balance at 20000Km/s (1g)
100% thrust efficiency (1g) at 2000Km/s