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Ground Effect on the Take-off and Landing of Airplanes (1935)
NASA Technical Reports Server (NTRS) · leaf 41
en … &, degrees J a, degrees o ^ Figure 17.- Wing with end plates. Figure 19.- Lift "by reflection method. J25NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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