This Foss craft bears a close resemblance to a tramp steamer. It's similarity to sea fairing cargo hauling ships can be seen in the large rectangular cargo containers bound to the midsection of the craft (Book of Alien).
Also take note of the Boeing 747 style nose of the vehicle
|Image of the United Carriers F. 1"Tramp Steamer" design from "Book Of Alien"|
|Image of the United Carriers F.1 "Tramp Steamer" design|
Source: Charles Lippincott's Facebook page