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In page Fokker S.14 Machtrainer:

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The production aircraft L-11 is preserved at the Royal Netherlands Air Force museum in Soesterberg. L-17 is undergoing renovation. There was a fourth, L-18, which was positioned besides one of the entrances at Fokker facility at Ypenburg, but this aircraft was scrapped during 1994 at the same time as the site was being closed down.[1][4]