Flight Mechanics and Control

9.

Dynamic Stability Analysis

9.1.

Longitudinal Dynamic Modes

9.1.1.

Characteristic Equation Analysis

9.1.1.1.

Eigenvalue Determination

9.1.1.2.

Stability Criteria

9.1.1.3.

Root Locus Methods

9.1.2.

9.1.2.1.

Physical Description

9.1.2.2.

Frequency Characteristics

9.1.2.3.

Damping Properties

9.1.2.4.

Design Implications

9.1.3.

Short Period Mode

9.1.3.1.

Physical Description

9.1.3.2.

Frequency Characteristics

9.1.3.3.

Damping Properties

9.1.3.4.

Handling Quality Effects

9.2.

Lateral-Directional Dynamic Modes

9.2.1.

Characteristic Equation Analysis

9.2.1.1.

Fourth-Order System

9.2.1.2.

Mode Identification

9.2.2.

Roll Subsidence Mode

9.2.2.1.

First-Order Mode

9.2.2.2.

9.2.2.3.

Roll Damping Effects

9.2.3.

Dutch Roll Mode

9.2.3.1.

Oscillatory Mode

9.2.3.2.

Frequency and Damping

9.2.3.3.

Yaw Damper Requirements

9.2.4.

9.2.4.1.

9.2.4.2.

Stability Characteristics

9.2.4.3.

Pilot Compensation

9.3.

Flying Qualities Assessment

9.3.1.

Military Specifications

9.3.1.1.

9.3.1.2.

Flying Quality Levels

9.3.1.3.

Mission Requirements

9.3.2.

Civil Certification Requirements

9.3.2.1.

9.3.2.2.

Handling Characteristics

9.3.3.

Cooper-Harper Rating Scale

9.3.3.1.

Pilot Rating Criteria

9.3.3.2.

Workload Assessment

9.3.4.

Pilot-in-the-Loop Considerations

9.3.4.1.

9.3.4.2.

Closed-Loop Analysis

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8. Aircraft Equations of Motion

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10. Flight Control System Fundamentals