Calverton Aerospace was founded by a group of Osean aeronautical engineers in 1925, headquartered in the Oured suburb of Calverton. With an emphasis on designing floatplanes, it won a number of naval aviation contracts culminating in its infamous Wildcat, Hellcat, and Bearcat line in the 1930s and 40s. The Great Usean War and Eastern War brought the "cat" line into prominence through Osean and Usean Confederation naval dominance, and this success continued into the jet age. For a time Osea's maritime forces were informally known as "Calverton's Navy" as nearly every navalized aircraft in the fleet was produced by Calverton, including F-9 Panther and F-11 Tiger fighters, A-6 Intruder attackers, E-1 Tracer and E-2 Hawkeye AWACS, and C-1 Trader and C-2 Greyhound Carrier Onboard Delivery craft. However, Calverton's craft performed poorly in export markets as amongst Osea's allies only the CUS/FCU operated large numbers of aircraft carriers.
This trend was reversed after the failure of the F-111B in the Osean navy's TFX contract. When Calverton unveiled its F-14 Tomcat entry into the successive VFX program, many Western nations took notice. Sales of over a thousand Tomcats to over half a dozen nations took place throughout the last decades of the 20th Century, and despite not having won any OMDF fighter contracts since then Calverton successfully subsided on offering Tomcat upgrades and parts. Furthermore, the failure of the NATF program prompted development of the F-14E concept, which many nations expressed interest in to replace their aging Tomcat fleets. Recognizing the threat posed by continued F-14E sales, and without any comparable aircraft to compete, General Resource bought out Calverton in 2018 and utilized its engineers' expertise in developing the F-28 Tomcat ASF naval interceptor.