Ground Effect on the Take-off and Landing of Airplanes (1935)
NASA Technical Reports Server (NTRS) · leaf 35
Fig. 6 N.A.C.A. Technical Ifemorandun Ho. 771 … Figure 6.- The experimental 6 values as measured "by flat plate method are substantially twice the theoretical value of Prandtl - Wieselsherger.
NASA Technical Reports Server (NTRS)
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