Title

Theoretical and Experimental Investigation of Some New Longitudinal Handling Qualities Parameters

Description

The systems-analysis theory of handling qualities (which describes the pilot's adaptive behavior in closed-loop operation by servo techniques, and relates his opinion-ratings to his adapted characteristics and the system performance) is used to reveal some important parameters associated with the numerator terms in the airframe longitudinal transfer function. The predictions are verified by five experienced test pilots operating in a fixed-base aircraft simulator.

Four possible numerator effects on handling qualities are analyzed theoretically: short-period lead effect on pitch attitude tracking, static-to-short-period gain effects on attitude tracking, short-period lead effects on the control of short-period divergence, and numerator frequency and damping effects on altitude tracking. The results are correlated with other test work, and the implications of these results on future handling qualities research and specifications are discussed.

Index Abstract

Contrails and DTIC

Photo Quality

Not Needed

Report Number

ASD TR 61-26

Index Price

$0.00

Report Availability

Full text available by request

Creator

Jex, Henry R.

Cromwell, Charles H., III

Date

1962

Extent

90

Corporate Author

Systems Technology, inc.

Laboratory

Flight Control Laboratory

Identifier

AD0282879

AD0282879

Contract

AF 33(616)-5661

DoD Project

8219

DoD Task

821905

Distribution Conflict

No

Access Rights

OTS

Distribution Classification

1

Special Scanning Requirements

Foldout pages

Date Issued

1962-06

Abstract

The systems-analysis theory of handling qualities (which describes the pilot's adaptive behavior in closed-loop operation by servo techniques, and relates his opinion-ratings to his adapted characteristics and the system performance) is used to reveal some important parameters associated with the numerator terms in the airframe longitudinal transfer function. The predictions are verified by five experienced test pilots operating in a fixed-base aircraft simulator.

Four possible numerator effects on handling qualities are analyzed theoretically: short-period lead effect on pitch attitude tracking, static-to-short-period gain effects on attitude tracking, short-period lead effects on the control of short-period divergence, and numerator frequency and damping effects on altitude tracking. The results are correlated with other test work, and the implications of these results on future handling qualities research and specifications are discussed.

Provenance

Bombardier/Aero

Type

report

Subject

Control Systems

Adaptive Control Systems

Aircraft

Airframes

Dynamics

Flight Simulators

Handling

Human Factors Engineering

Mathematical Analysis

Pitch (Material)

Pitch (Motion)

Tests

Theory

Publisher

Wright-Patterson Air Force Base, OH : Flight Control Laboratory, Aeronautical Systems Division, Air Force Systems Command

Format

x, 90 pages : ill. ; 28 cm.

AD Number

AD 282 879

Cover Price

$2.50

DTIC Record Exists

Yes