Accession Number:

AD0255956

Title:

ANALOG-COMPUTER INVESTIGATION OF EFFECTS OF FRICTION AND PRELOAD ON THE DYNAMIC LONGITUDINAL CHARACTERISTICS OF A PILOT-AIRPLANE COMBINATION

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s):

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

With an analog computer, an investigation was made of the effects of stick pivot friction and servo valve friction on the longitudinal response of a fighter airplane. The results indicated that very small amounts of valve friction caused hunting oscillations of the piloted airplane when a small attitude correction was attempted. It was found that partial compensation for the effects of valve friction resulted from the presence of either stick friction or preloaded centering of the servo valve or the stick. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE