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Military

BASIC AERODYNAMICS

Subcourse Number AL0966

EDITION B

US Army Aviation Logistics School
Fort Eustis, Virginia 23604-5439

2 Credit Hours

Edition Date: JULY 1994

SUBCOURSE OVERVIEW

This subcourse is to be completed on a self-study basis.

There are no prerequisites for this subcourse.

This subcourse reflects the doctrine which was current at the time it was prepared. In your own work situation, always refer to the latest official publications.

Unless otherwise stated, the masculine gender of singular pronouns is used to refer to both men and women.

TERMINAL LEARNING OBJECTIVE

ACTION: You will identify policies, procedures and methods for discussing the effect of the atmosphere on flight, basic aerodynamics, and helicopter fundamentals.
CONDITIONS: You will use the material in this subcourse.
STANDARD: To demonstrate competency of this task, you must achieve a minimum of 70% on the subcourse.

TABLE OF CONTENTS

Subcourse Overview
Lesson  1. EFFECT OF THE ATMOSPHERE ON FLIGHT
  General
  Composition of the Atmosphere
  Structure
  Temperature Variation with Altitude
  Density altitude
  Summary
Lesson 2. BASIC AERODYNAMICS
  General
  Bernoulli's Theorem
  Newton's Laws
  Forces Acting on an Aircraft
  Airfoils
  Angle of Attack
  Stall
  Ailerons and Flaps
  Stability
  Cantilever Wings
  Boundary Layer
  Speed Brakes
  Empennage Group
  Summary
Lesson 3. HELICOPTER FUNDAMENTALS
  General
  The Four Forces Acting on a Helicopter
  Controls
  Velocity
  Torque
  Antitorque Rotor
  Gyroscopic Precession
  Dissymmetry of Lift
  Retreating Blade Stall
  Setting with Power
  Pendular Action
  Hovering
  Ground Effect
  Translational Lift
  Autorotation
  Summary
PRACTICE EXERCISE
APPENDIX I. REFERENCES
II. GLOSSARY
INDEX
AL0966 EDITION B EXAMINATION