An Automatic Speed Control for Wind Tunnels (1928)
NASA Technical Reports Server (NTRS) · leaf 18
.A.:.A. Technical llcte lie .276 Figs.13.13.14,15 t I- r 0 0 z c Z Fig.13 Sritich standard Pi tot-static tube, 1S12 … Fig. 14 Apparatus for recording wind force against tiir.e, use:, to cocpare three types of aip-cpeed control. Wire net, less ineahee, had a frontal area equal to 1/35 of the tunnel cress section ana was mounted 5 feet upstream from the chronograph
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