Accession Number:

AD0875405

Title:

An Investigation of Pilot Pumping, Using Pilot Describing Function Models.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1970-03-01

Pagination or Media Count:

116.0

Abstract:

Control surface pumping, which occurs in some aircraft during landing is modeled. The model assumes the pilot controls flight path angle and that, during flare, the pilot attempts to minimize mean square error i.e., deviations from some fixed flight path angle. A pilot describing function model is developed to simulate the pilot. The pumping model, with the pilot describing function, is simulated on an analog computer. There is good correlation between the model predicted pumping frequencies and observed pumping frequencies for the F-105, F-84E and F-84F. Predictions are made for the pumping frequencies of theT-39 and T-33. The model control task is simulated with a live pilot in a ground based simulator. The live pilots did pump, but at frequencies much lower than those observed or predicted by the model. These lower pumping frequencies are attributed to lack of motion cues in the simulation. Author

Subject Categories:

  • Bombers
  • Attack and Fighter Aircraft
  • Training Aircraft
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE