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Effects of time delay and pitch control sensitivity in the flared landing (1986)

Wingarten, N. C. ; Berthe, C. J. ; Grantham, W. ; [et al.]

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Publication Date: 2019-06-28

Description: Between December 1985 and January 1986, a flared landing program was conducted, using the USAF Total In-Flight simulator airplane, to examine time delay effects in a formal manner. Results show that as pitch sensitivity is increased, tolerance to time delay decreases. With the proper selection of pitch sensitivity, Level I performance was maintained with time delays ranging from 150 milliseconds to greater than 300 milliseconds. With higher sensitivity, configurations with Level I performance at 150 milliseconds degraded to level 2 at 200 milliseconds. When metrics of time delay and pitch sensitivity effects are applied to enhance previously developed predictive criteria, the result is an improved prediction technique which accounts for significant closed loop items.

Keywords: AIRCRAFT STABILITY AND CONTROL

Type: AIAA PAPER 86-2075

Format: text

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