Tests resumed at NAFEC on March 1, 1971. On this occasion, the 26 "went up and out of ground effect with no strain at all". In subsequent tests, it performed circuits of the field and a variety of other maneuvers before the engine's life expiry ended the test program. The Aereon 26 currently resides at the Trenton-Robbinsville Airport (N87), "sit[ting] quietly in a hangar," with Miller "looking for a home (and philanthropic support)" for the aircraft. After the test program Results of the program Addressing the Interagency Workshop on Lighter than Air Vehicles in 1974, William Miller said the test program indicated that performance was as had been predicted, the 26's stability and control and handling qualities were "good," the aircraft was "docile and acceptable...within the limited scope of the tests," and the concept had been shown to be feasible, with the program potentially forming a basis for "realistic studies of much larger such aircraft." Proposed further developments Dynairships The aircraft was intended as a forerunner of much larger craft that—unlike the 26 itself—would contain helium; these designs were dubbed "Dynairships." One proposal, the AEREON 340, was to have been long, with a wingspan of and total lift of . Powered by four Rolls-Royce Tyne turboprop engines, it was claimed to be capable of carrying intermodal containers or semi-trailers, operating slightly heavier than air. A patent for "[a] cargo-carrying air ship [sic] compris[ing] a gas-filled, low aspect ratio deltoid wing" was granted in 1969; according to this patent, "extremely large ships, having lengths in excess of " and capable of economically transporting "large payloads, ranging up to or more" over long distances, were feasible. In 1974, Miller described three "hypothetical Dynairships": A "small patrol aircraft" long, with a gross weight of A "medium-size cargo aircraft" long, with a gross weight of A "logistic carrier" long, with a gross weight of . Heavier-than-air Versions of the configuration that would, like the 26, have lacked lifting gas and operated heavier-than-air at all times were also proposed. These included "a kind of flying camper for general aviation" and "a bigger model for the regional airline industry." A variant with a V/STOL capability, using blown flaps, was patented in 1979. Another heavier-than-air variant, later known as the Aereon WASP, is described in a 1990 patent. This "airborne surveillance antenna platform" with "long endurance and high altitude flight capability" was to carry a radar antenna