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Representative operating charts of propellers tested in the NACA 20-foot propeller-research tunnel

W.H. Gray, Nicholas Mastrocola

Abstract

Report presents the results of tests of full-scale propellers made in the 20-foot propeller-research tunnel (PRT) at the Langley Memorial Aeronautical Laboratory. The power coefficients of all dual-rotating propellers in the report represent the sum of the power coefficients of the front and rear propellers and are for the test conditions in which blade angles of the front and rear propellers were set to absorb approximately equal power at peak efficiency only.

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Available abstract

Key concepts: Propeller, Marine engineering, Hull, Front (military), Engineering, Power (physics), Blade (archaeology), Structural engineering