Preliminary investigation of a stick shaker as a lift-margin indicator

James P. Trant, Jr.
naca-tn-3355
Feb 1955


An exploratory study was made to determine whether a pilot could use vibration of the control stick, in which either the amplitude or the frequency, or both, varied with lift or angle of attack, as a means of maintaining a desired lift margin below the stall.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1955/naca-tn-3355.pdf