Aerodynamic characteristics at high speeds of related full-scale propellers having different blade-section cambers (open access)

Aerodynamic characteristics at high speeds of related full-scale propellers having different blade-section cambers

From Summary: "Wind-tunnel tests of a full-scale two-blade NACA 10-(10)(08)-03 (high camber) propeller have been made for a range of blade angles from 20 degrees to 55 degrees at airspeeds up to 500 miles per hour. The results of these tests have been compared with results from previous tests of the NACA 10-(3) (08)-03 (low camber) and NACA 10-(5)(08)-03 (medium camber) propellers to evaluate the effects of blade-section camber on propeller aerodynamic characteristics."
Date: May 6, 1948
Creator: Maynard, Julian D. & Salters, Leland B., Jr.
System: The UNT Digital Library
On the Theory of Oscillating Airfoils of Finite Span in Subsonic Compressible Flow (open access)

On the Theory of Oscillating Airfoils of Finite Span in Subsonic Compressible Flow

"The problem of oscillating lifting surface of finite span in subsonic compressible flow is reduced to an integral equation. The kernel of the integral equation is approximated by a simpler expression, on the basis of the assumption of sufficiently large aspect ratio. With this approximation the double integral occurring in the formulation of the problem is reduced to two single integrals, one of which is taken over the chord and the other over the span of the lifting surface" (p. 969).
Date: May 18, 1948
Creator: Reissner, Eric
System: The UNT Digital Library