Drafting room methods by Collins Charles Dickey 1872-

Author:Collins, Charles Dickey, 1872- [from old catalog]
Language: eng
Format: epub, pdf
Tags: Drawing-room practice, Mechanical drawing
Publisher: New York, D. Van Nostrand company
Published: 1918-03-25T05:00:00+00:00

NOMENCLATURE FOR AERONAUTICS 59

effect of this is to reduce the effective resistance of the hull, and this effect, due to the forward movement of the wake, is termed the ^^wake gain."

In addition to this effect the forward movement of this body of fluid reduces the actual advance of the propeller through the surrounding medium, thereby reducing the propeller horsepower.

Warp: To change the form of the wing by twisting it, usually by changing the inclination of the rear spar relative to the front spar.

Wings : The main supporting surfaces of an airplane.

Wing loading: The weight carried per unit area of supporting surface.

Wing rib : A fore and aft member of the wing structure used to support the covering and to give the wing section its form.

Wing spar: An athwartship member of the wing structure resisting tension and compression.

Yaw: To swing off the course about the vertical axis, owing to gusts or lack of directional stability.

Angle of. — The temporary angular deviation of the fore and aft axis from the course.

In connection with the nomenclature of the Advisory Committee, the following cuts of airplanes with their part names should prove useful and are reproduced by permission of the American Machinist and the Aircraft Mechanics Handbook.

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