all the Dutch and part of the Belgian aircraft. Construction of the rear-part of the airframe. Werkspoor: construction of central part of the airframe Aviolanda: construction of the front of the airframe Société Anonyme Belge de Constructiona Aéronautiques (Sabca): bouw van vleugels, construction of the wings and landing gear (license Dowty) Avions-Fairey: final assembly of part of the Belgian planes Busses Werkspoor built busses before and after the Second World War. In the late 1940s 195 Crossley busses were built for local public transport companies owned by the Nederlandse Spoorwegen. After that Werkspoor did not build any busses, but after seven years it re-entered the market by a request of the Nederlandse Spoorwegen, that wanted to prevent the big coachbuilder Verheul from gaining a monopoly. Verheul was able to build busses with a self-supporting body, and Nederlandse Spoorwegen thought that Werkspoor should also be able to do so. From 1956-1962 Nederlandse Spoorwegen and its subsidiaries received 477 Leyland-Werkspoor Bolramer busses. In 1962 Werkspoor sold the bus division to Hainje in Heerenveen, now part of VDL Groep. Radio telescope In 1956 Werkspoor together with Philips, the Royal Netherlands Meteorological Institute and some Dutch universities built the Dwingeloo Radio Observatory. Hyperbaric chamber In 1959 Werkspoor the first pressure chamber for hyperbaric medicine used for medical purposes. Customer was the Wilhelmina Gasthuis in Amsterdam. After the Wilhelmina Gasthuis became part of the Academic Medical Center in Amsterdam, the chamber moved to the Meibergdreef, where it is still used. Nuclear reactor and ultracentrifuges The first experiments with the use of ultracentrifuges for enriching uranium were executed by the Dutch physicist Dr. Jacob Kistemaker in the basements of Werkspoor in Amsterdam. This finally led to founding the uranium enrichment plant Urenco in Almelo in 1969. In the 1970s Werkspoor built the reactor pressure vessel for the KEMA Suspensie Test Reactor (KSTR), an experimental nuclear reactor used by KEMA in Arnhem from 1974-1979 for studies. Legacy In Amsterdam there was a Werkspoormuseum. Since 1950 it was housed the former ropewalk of the Dutch East Indies company. This 500 meter long building called Lijnbaan dates from 1660. The lower level had items from the Dutch East Indies company, the first floor treated the industrial heritage of Werkspoor. The museum was also a representative building for Stork, but was not open to the public, and was finally closed in 2011. Owner Stork then looked for a new place