in the open for more than 20 years. In 1996 it was donated to Railworld, where it was later restored and set up as a main display in front of the buildings. The test track was removed, but several concrete footings project, at ground level, from a small pond beside the Counter Drain. The course of the track itself can be seen in aerial photography, as it has been re-used as a dirt road. Further along the river bank, the engineering shed survives at Earith. The only surviving evidence of the offices in Ditton Walk, Cambridge is an electrical substation named "Hovercraft", which was installed to support the high-power electrical research work there. Many original documents from the Tracked Hovercraft project are stored within the Hovercraft Museum library in Hampshire, England, including technical documents, video footage reels, press books and blueprints. A scale model of the RTV 31, a working miniature LIM, photographs, video footage and archive documents are kept within the Museum. Another scale model of the RTV 31 is kept within the museum at Railworld Wildlife Haven. See also Hyperloop Ground effect train Maglev (transport) Aérotrain Notes References Citations Bibliography Further reading Dennis Bliss, "The Tracked Hovercraft System of High Speed Land Transport", Railway Age, Proceedings [of the] annual meeting, Volume 8, pg. 333–359 External links "TRANSPORT: Legendary train on display at Railworld" Recent pictures of the remains of the Tracked Hovercraft test track in Cambridgeshire, UK Engineering the Hovertrain, Imperial College London, 1972. Laithwaite demonstrates the concepts behind the linear motor and other engineers show the construction of the test train. High-speed trains Air-cushion vehicles Hovertrains Linear induction motors