The airship is an over-sized blimp, which has a complex system of oar-like fans which propel it forward.
A two-prop, front propeller on the nose of the blimp ensures it has a steady forward motion, while oar-like fins on the side and rear of the blimp lightly control its direction and affect its speed.
The airship, although a staple of Kantebury air power, is not very effective. Even the military has begun using other, more-typical Airship classes instead of the Vimana.
It's major advantage over other classes of airship is unrivaled fuel efficiency.