One of the Silvana's Cargo Vanships
Cargo vanships are a type of vanship that is approximately the size of a bus. As these are intended for efficiency instead of speed they have multiple thrusters and no ailerons, as sufficient control is achieved merely by pivoting their thrusters. The cargo vanships carried by the Silvana have thrusters that fold onto the side for easier stowage.
These vanships were the largest Claudia-powered ships that could be built by any save the Guild until the invention of the Urbanus class of warships.
Strangely, in Last Exile: Fam the Silver Wing, Cargo Vanships appeared on Earth before the arrival and contact of the United Kingdom of Anatoray-Disith, 8 years to be exact.