AE446 Introduction to Helicopter Aerodynamics and Helicopter Design

Course Description :
Introduction: Helicopters in general, critical parts of helicopters, types of helicopters. Rotor in vertical flight(momentum theory).Rotor in vertical flight(blade element theory). Mechanisms of rotor. Forward Flight: Momentum theory, blade element theory. Performance and Trim-Stability: Helicopter design, blade section design, blade tip shapes, rear fuselage upsweep, second harmonic control. Design assignment

Prerequisite(s):
No prerequisite courses.

Textbook(s) and/or Other Required Material:
J. Seddon, '' Basic Helicopter Aerodynamics'' BSP Professional Books.
S.Newman, '' The Foundations of Helicopter Flight'' Edward arnold;1994.

The following books are the excellent sources of reference.
W.Z. Stepriewski & C.N Kayes, ''Rotary Wing Aerodynamics(I and II)'' Dover Publications.
R.W. Prouty, '' Helicopter Aerodynamics'' Philips Publishing INC
R.W. Prouty, '' More Helicopter Aerodynamics '' PJS Publication

Course Objectives :
This course objective is to give to students the essentials of vertical and forward flight of rotary wing aircraft, the essentials of helicopter aerodynamics and of helicopter design.

Topics Covered:
1. Introduction - 1 Week
2. Rotor in Vertical Flight(Momentum Theory) - 2 Weeks
3. Rotor in Vertical Flight(Blade Theory) - 2 Weeks
4. Mechanisms of Rotor - 2 Weeks
5. Forward Flight - 2 Weeks
6. Performance - 2 Weeks
7. Trim Stability - 2 Weeks
8. Helicopter Design - 2 Weeks

Class/Laboratory Schedule:
The course has three lecture hours and no laboratory sessions. The duration of each lecture hour is 50 minutes.

Homework, Quizzes and Projects:
No homework will be given .
No quizzes will be given.
Detailed design project will be assigned.

Computer Usage: Project will require computer applications.
Laboratory Work: None

Contribution of Course to Meeting the Professional Component:
Mathematics and Basic Sciences: None
Engineering Design: 3 credits
Engineering Sciences: None
Humanities and Social Sciences: None

Relationship of Course to Program Objectives:
The course intends to satisfy the first, second, fourth, fifth, and sixth objectives of the Department of Aerospace Engineering.

Prepared By:
Cahit ÇIRAY
12-02-1999