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Download 75 Years of Aerospace Research in the Netherlands. 1919 - by Jan A. van der Bliek PDF

By Jan A. van der Bliek

One other publication entitled '75 Years of Aerospace learn within the Netherlands', written in English, unfolds the heritage of the NLR and it is predecessors.It was once released in 1994 and is out of print for a very long time now, yet made to be had back in electronic shape on the site of the NLR historic Museum.

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Ref. 291. This coniniittee generated ideas and distributed pamphlets to civil servants and managers in industry, including the Railways, on how to avoid effective work for the German occiipational forces. He was arrested on 12 April 1944 and lailed in Amsterdam, moved to Vught and later deported to tlie concentration camp Sachsenhausen in Germany. Fortunately he returned after the war. Several employees were arrested and jailed for some time. Dr. Wolff. w h o was Jewish, died o n 7 February 1941, just before the massive persecution of the Jewish populations began.

Experimental work came to a stop. Office work continued to some extent but everybody was menially occupied with the problems of war, suwival, food and fuel. Only manual labor could be carried out in the workshops. To a large extent this consisted of the manufacture of small stoves, lamps and other utensils for the personnel. With Iaeronauticall productivity rapidly falling it would have been possible to decide to close the laboratory but it was considered prudent to continue the operation as long as possible since it would provide some protection for the personnel and the laboratory in a very uncertain situation.

NEW measurement techniques and instrumentation for carrying out its flight tests were continuously developed at RSL. During the first years after the Second World War, when the need arose to measure more parameters simultaneously during one flight, a so-called automatic observer was developed. It consisted of a panel on which many dial gauge instruments were mounted. During flight tests this panel was photographed by a movie camera. The first digital flight data recorderdevelopedai NLR. the DR28 When digital recording equipment became available, special magnetic tape flight recorders were developed and the measurements were increasingly carried out with sensors with digital outputs.

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