“Expecting guests with nowhere for them to park? Embarrassing when you’re a host. Expensive when you’re a business. Excruciating when you’re a planet.
“Fortunately, as long as you’ve got a scrap of bare rock to set a shuttle down upon, we have the answer. Hire one of our Portal-class mobile highports today, offering luxurious docking, interface, transshipment, space-traffic control and chandlery services, and see your problem solved… instantly1!
“1. Transit time constraints notwithstanding. Extra fees may apply for emerging markets or regions currently engaged in conflict or piracy.”
– from an Ellore Modular Industries, ICC, interactive advertisement
The Portal-class mobile highport is exactly what its name implies: a complete orbital starport, custom-designed to operate efficiently in conjunction with only very limited downport facilities (or even nothing but airports available), designed to be movable between planets and systems as demand requires.
The Portal is built on a conventional frame: a cylindrical hull with rounded ends, sporting a pair of counter-rotating gravity wheels near its midsection. As can be expected from an Ellore product, it is largely modular: its permanent features are limited to the gravity wheels (containing parks, hydroponics, and living quarters), an axial utility core containing engineering and command elements, a large toroidal fuel tank assembly wrapped around the core, and small craft docking facilities at each end of the cylinder, one dedicated to interface vehicles and the other to orbital traffic. Working squadrons of Nelyn-class cutters, Lowari-class shuttles and Maw-class fuel skimmers accompany the highport.
The remainder of its volume is devoted to the modular segments, six of which connect in each section, terminating at the transpod shafts running along the outside of the fuel tank assembly. Various different combinations of modules, along with appropriate operating crew, can be installed as part of the lease to meet individual customer requirements: cageworks, cargo storage space, chandleries, internal berthing volume, large-vessel docking arms, passenger services – including concessions, hotels, lounges, and other amenities – and even defensive systems.
The Portal itself has no integral drive systems; it relies on an accompanying Hane-class superlifter (whose docking clamps surround the interface vehicle bay) for propulsion.
Ellore maintains a small fleet of Portals for lease, chiefly by worlds expecting a short-term increase in traffic (whether one-off, or regular, but insufficient to justify maintaining a largely idle permanent port) due to social events, harvest times or other seasonal traffic bursts, new discoveries susceptible to exploitation, disaster relief (for which the Imperial Emergency Management Authority and a number of eleemosynary organizations keep Portals on retainer), nth-wave colonization, and so forth. A few are also kept under contract to the Imperial Exploratory Service, which may be offered on long-term lease to particularly promising newly contacted worlds likely to generate substantial interstellar traffic over relatively short periods of time.