THE EFFECTS. OF REYNOLDS NUMBER ON THE APPLICATION OF NACA 16-SERIES AIRFOIL CHARACTERISTICS TO PROPELLER DESIGN

摘要

An analysis has been made of airfoil data taken on several NACA l6-series propeller airfoils from tests of 5-inch-chord models in the Langley 24-inch high-speed tunnel and 12-inch-chord models in the Langley 8-foot high-speed tunnel.nThis analysis has shown that the combined effects of Reynolds number changes and variations in airfoil characteristics resulting from differences in models and tunnels are such that, when 5-inch-chord and 12-inch-chord data are applied to full-scale propeller design at or near the design condition, differences of less than 1 percent in efficiency are involved.