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Modified over 2 years ago
Forging new generations of engineers
Gliders in Flight Stability for Straight and Level Flights
Gliders Long Distance Fliers
Balsa Glider? Straight and Level = Maximum Distance
3 axis movement
Movement in Yaw
Movement in Roll
Movement in Pitch
Lateral Stability: Roll High wing aircraft are naturally stabilizing.
Lateral Stability: Roll Low wing aircraft are naturally stabilizing.
Lateral Stability: Dihedral
Why does dihedral work?
Weight Uniform Lift
Why does dihedral work? Weight Component of Weight Causing a Sideslip
Why does dihedral work? Induced Relative Wind Higher AOA Lower AOA Higher Lift Lower Lift Rolling Moment
Lateral Stability: Types of Dihedral No Dihedral Straight Dihedral Tip Dihedral Polyhedra l
Movement in Yaw
Directional Stability: Keel Effect
Directional Stability: Weather Vaning
Directional Stability Moment Arms
Movement in Pitch
Avoiding the Stalling
Weight and Balance Center of Lift Weight at Center of Gravity Balanced, but easy to shift… VERY nose heavy! VERY tail heavy!
Center of Gravity Range
Regional Gliding School Stability Stability is the tendency of an airplane in flight to remain in straight, level, upright flight and to return to this.
Parts of an Aircraft. What is an Airplane? Aircraft –More general term –Refers to any heavier-than-air object that is Supported by its own buoyancy Supported.
Aircraft Control Devices. Aim To introduce the design features used to aid in aircraft control.
Aerospace Education Module 1 Introduction to Flight.
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Web site hyperlinks Weather ADDS - Aviation Digital Data Service HomepageADDS - Aviation Digital Data Service Homepage FAA tests (FAA web) Pilot TestingPilot.
Lecture X: Air Density Factor AIRCRAFT WEIGHT & PERFORMANCE.
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BIOMECHANICS Biomechanics is the study of forces and their effects on the human body during movement. Forces are the basis for all movement.
Regional Gliding School b b An airfoil or airfoil section may be defined as any surface designed to obtain lift. It has been found that the most suitable.
Ex Slow Flight Ex. 11 – Slow Flight. Ex Slow Flight What you will learn: To recognize the signs of slow flight (flight at airspeeds between.
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Regional Gliding School Angle of Attack The angle at which the airfoil meets the relative wind is called the angle of attack.
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Natural Selection on Polygenic Traits. Effects of natural selection on polygenic traits are very complex Can affect the distributions of phenotypes in.
Uncontrolled copy not subject to amendment Principles of Flight Learning Outcome 1 Understand the principles of flight Part 2: Describe how thrust, drag,
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University of California, Irvine – UCI Team Caddyshack.
Ex Approach and Landing Ex. 18 – Approach and Landing.
Ex. 8 - Descending. What you will learn: How to descend at a variety of airspeeds and power settings to a desired altitude How to accurately level off.
Aerodynamics of Wind Turbine Control Systems By Chawin Chantharasenawong 21 August 2009.
Forces act in pairs. Force engine = thrust friction = drag.
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