gliders in flight stability for straight and level flight
TRANSCRIPT
![Page 1: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/1.jpg)
Gliders in Flight
Stability forStraight and Level Flight
![Page 2: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/2.jpg)
Glider in Flight
![Page 3: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/3.jpg)
Gliders Are Long Distance Fliers
![Page 4: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/4.jpg)
Gaining Altitude
• Glider do not have an engine• Use rising air to gain altitude
![Page 5: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/5.jpg)
Balsa Glider Flight
• Straight and Level = Maximum Distance
![Page 6: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/6.jpg)
Tree axis of movement
![Page 7: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/7.jpg)
Movement in Yaw
![Page 8: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/8.jpg)
Movement in Roll
![Page 9: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/9.jpg)
Movement in Pitch
![Page 10: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/10.jpg)
Static Stability
![Page 11: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/11.jpg)
Dynamic Stability
![Page 12: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/12.jpg)
Lateral Stability: Roll
• High wing aircraft are naturally stabilizing
![Page 13: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/13.jpg)
Lateral Stability: Dihedral
![Page 14: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/14.jpg)
Why does dihedral work?
![Page 15: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/15.jpg)
Why does dihedral work?
Weight
Uniform Lift
![Page 16: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/16.jpg)
Why does dihedral work?
Weight
Component of WeightCausing a Sideslip
![Page 17: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/17.jpg)
Why does dihedral work?
Induced Relative Wind
Higher AOA
Lower AOAHigher Lift
Lower LiftRollingMoment
![Page 18: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/18.jpg)
Lateral Stability: Types of Dihedral
No Dihedral
Straight Dihedral
Tip Dihedral
Polyhedral
![Page 19: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/19.jpg)
Movement in Yaw
![Page 20: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/20.jpg)
Directional Stability: Keel Effect
![Page 21: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/21.jpg)
Directional Stability: Weather Vaning
![Page 22: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/22.jpg)
Directional Stability Moment Arms
![Page 23: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/23.jpg)
Directional Stability
![Page 24: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/24.jpg)
Movement in Pitch
![Page 25: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/25.jpg)
Avoiding the Stalling
![Page 26: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/26.jpg)
Weight and Balance
Center of Lift
Weight at Center of Gravity
Balanced, but easy to shift…
VERY nose heavy!
VERY tail heavy!
![Page 27: Gliders in Flight Stability for Straight and Level Flight](https://reader034.vdocuments.site/reader034/viewer/2022051417/5697c02c1a28abf838cd9564/html5/thumbnails/27.jpg)
Center of Gravity Range