By Jan A. van der Bliek
One other ebook entitled '75 Years of Aerospace study 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 on hand back in electronic shape on the web site of the NLR ancient Museum.
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Extra resources for 75 Years of Aerospace Research in the Netherlands. 1919 - 1994
Engelbrecht of the AVAvisited NLL and initiated discussions on futuie work. It was tlieii intention to involve NLL in their long-term scientific research efforts. NLL was to be excluded from research directly connected with the wai effort Their interest was focused on experimental aerodynamics and basic reseaich in structures. The NLL equipment was well advanced and particularly the investigations related to flutter problems and the possibility of developing equipment for unsteady aerodynamic measurements drew the attention of the Gottingen group.
This specific aircraft was originally built in Germany in 1918 as a prototype for Fokker's first passenge: plane.
This was one of the first attempts to formulate a scientific basis for aircraft flight testing, [Ref. 351. The stability criterion based on stick position was later superseded by the criterion of stick force stability as it was developed paniculariy in the USA during the 1940's. [Ref. 361. Without going into details, it seems that with the current development of 'fly-by-wire' and computer controlled flight systems - whereby unstable aircraft are made to fly -, stick position stability becomes again a relevant criterion.