lag angle
lag angle
[′lag ‚aŋ·gəl] (physics)
The negative of phase difference between a sinusoidally varying quantity and a reference quantity which varies sinusoidally at the same frequency, when this phase difference is negative. Also known as angle of lag; lag.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
lag angle
The angle by which a rotor blade is displaced about its drag hinge. The angle is measured between the blade-span axis and a radial line taken across the rotor disc containing the drag hinge and the axis of rotation.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved