Figs.1,2,3,11 N.A.C.A. Technical Memorandum No. 859 Leads to 6 component balance fx \ Entrance Exit cone / cone Pivoted ring Model screen Supplementary cone Figure 1.- Spinning test setup in the 1.2 m wind tunnel schemat- ical plan. … Figure 3.- Radial tip spe6d distribution for different screen speeds. —-4 WithoutStr€?en\Ro+ofing oirfoil-f/xec/Jef- —-o WHh " J ffo i of/ny J<s>/ - /»e d o/r f o // ^(W'ing'tip) Figure 11.- Spinning moments of airfoil section M5.
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