Test of an adjustable pitch model propeller at four blade settings / by E.P. Lesley.

Format:

Book

Government document

Author/Creator:

Lesley, E. P. (Everett Parker), 1874-1945, author.

Contributor:

United States. National Advisory Committee for Aeronautics, issuing body.

Series:

Technical note (United States. National Advisory Committee for Aeronautics) ; 333.

Technical notes / National Advisory Committee for Aeronautics ; No. 333

Language:

English

Subjects (All):

Aeronautics--Research.

Aeronautics.

Propellers.

Physical Description:

1 online resource (15 pages, 12 unnumbered pages) : illustrations.

Place of Publication:

Washington, [D.C.] : National Advisory Committee for Aeronautics, 1930.

Summary:

This note describes tests of an adjustable blade metal model propeller, both in a free wind stream and in combination with a model fuselage, at four settings of the blades. The model propeller is designed for a uniform nominal pitch/diameter ratio of .7 and the blade settings used correspond to nominal pitch/diameter ratios of .5, .7, .9 and 1.1 at the .6 radius. Tests show that propellers of this type may be considerably changed in setting from the designed pitch angles and yet give excellent performance. The efficiency realized and power absorbed when blades are set at other than the designed angle, are little different than would be obtained from a propeller with uniform pitch equal to the mean pitch of the propeller under test.

Notes:

Title from title screen (viewed January 14, 2020).

"February, 1930."

No Federal Depository Library Program (FDLP) item number.

Includes bibliographical references (page 15).

Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.

Other Format:

Print version: Lesley, E. P. Test of an adjustable pitch model propeller at four blade settings

OCLC:

1136490291