Aircraft Static Trim and Stability

Learn how to balance forces and moments on an aircraft with control surfaces, and how to evaluate the longitudinal and lateral stability.

Aircraft Static Trim and Stability

Learn how to balance forces and moments on an aircraft with control surfaces, and how to evaluate the longitudinal and lateral stability.
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About the Class

Course Description

In this course, we use free-body diagrams to balance the forces and moments on an aircraft. We also look at how these forces and moments must change with any change in aerodynamic angles to ensure the aircraft is stable. You’ll learn to solve for the trim settings given aerodynamic information about an aircraft, and you’ll learn how to estimate the effects of lifting surfaces, propellers, and the fuselage on the overall trim and stability of the aircraft.

Key Concepts Include:

  • Longitudinal and Lateral Force and Moment Balancing
  • Requirements for an aircraft to be longitudinally and laterally stable
  • The aerodynamic center and static margin
  • Effects of lifting surfaces
  • Influence of Propellers
  • Influence of Fuselage, Nacelles, and other stores
  • Steady-Heading Sideslip
  • Minimum Control Airspeed

We take our time going through the mathematics, and you can speed up or slow down the videos depending on your own learning speed. It is recommended that you first complete the Airfoil Analysis and Wing Analysis courses. It’s also helpful to have taken the Aircraft Performance course.

This Course Includes:

  • 34 Lessons with detailed explanations
  • Over 7 hours of video instruction

At the completion of this course, you’ll be a master of aircraft trim and stability. You’ll understand the physics of why stability is important, and how to predict the stability of an aircraft from its aerodynamic parameters. It’s a very fascinating topic, so let’s get started.

Author

Doug Hunsaker

Aerospace Engineer and Teacher
Hi - I'm Doug. I love airplanes and math. Why are my courses so cheap? I believe higher education should be available to those of all economic circumstances and geographic locations.  My pre-recorded classes grew out of the pandemic that forced higher education to go online. I wanted to extend my reach to students who don't have the opportunity...

School

AeroAcademy

Conquer the Math of Flight
Through our study of aircraft design, we have grown to love the beautiful mathematics behind aerodynamics and flight mechanics. These analytical solutions grew out of intense work by aerodynamicists that were well versed in physical laws and mathematical principles. With the development of the computer in the 1960’s and subsequent improvements...

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There are no additional requirements.
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What's Included

Language: English
Level: Advanced
Skills: Influence of Nacelles, Longitudinal Stability, Longitudinal Trim, Lateral Trim
Age groups: 18+ years
Duration: 7 hours 45 minutes
34 Videos
1 Document
2
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