Flight mechanics - Lift and trajectory
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Flight mechanics - Lift and trajectory
This course is part of Fundamentals of Flight mechanics Specialization
Instructor: Eric Poquillon
4,871 already enrolled
Included with
What you'll learn
Define the lift coefficent.
Describe the relation between angle of attack and speed.
Describe the limitation of a flight interms of speed, altitude and attitude.
Details to know
14 assignments
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There are 4 modules in this course
In this course, you will understand the influence of the angle of attack and speed on the lift. Then we will focus on hazards and limitations, like stall, spiral dive, or flutter.
You will understand why stall phenomenon and Mach number limit the maximum lift and altitude the airplane can achieve. Then, you must understand what is flutter and why the altitude and speed of the airplane must be restricted to a safe domain. In the end, we will explain how to control the trajectory of the airplane and the relation with lift and load factor. This course is a part of the specialization "Fundamentals of Flight mechanics".
At the end of this module, you will understand the influence of the angle of attack and speed on the lift.
What's included
2 videos6 readings3 assignments1 discussion prompt1 plugin
2 videos•Total 7 minutes
- Aerodynamic forces•3 minutes
- Lift coefficent•4 minutes
6 readings•Total 40 minutes
- Welcome!•5 minutes
- Glossary/Definiton of terms•10 minutes
- Summary•2 minutes
- A reminder on angle of attack•10 minutes
- AOA definition•10 minutes
- Practical application: Angle of attack variation•3 minutes
3 assignments•Total 28 minutes
- Week assessment•20 minutes
- Check your knowledge on aerodynamique forces•5 minutes
- According to your observation, answer the questions•3 minutes
1 discussion prompt•Total 10 minutes
- Create lift and use it in the trajectory•10 minutes
1 plugin•Total 15 minutes
- Experiment AOA-Speed relationship•15 minutes
Let's focus on hazards and limitations, like stall, spiral dive, or flutter... You will understand why stall phenomenon and Mach number limit the maximum lift and altitude the airplane can achieve. What is flutter and why the altitude and speed of the airplane must be restricted to a safe domain?
What's included
11 videos4 readings7 assignments1 discussion prompt
11 videos•Total 28 minutes
- Stall definition•2 minutes
- Stall speed•2 minutes
- Stall demonstration•2 minutes
- Stall origin•3 minutes
- Risk prevention•3 minutes
- Altitude effect on speeds•2 minutes
- Buffet onset•2 minutes
- Lift ceiling•3 minutes
- Operationnal speeds•3 minutes
- Other limitations•3 minutes
- Drawing the flight envelope•2 minutes
4 readings•Total 7 minutes
- Stall•2 minutes
- Stall origin and consequences•2 minutes
- Summary•2 minutes
- Summary•1 minute
7 assignments•Total 95 minutes
- Assess your knowledge•30 minutes
- Beech 200 stall characteristics•15 minutes
- Check your knowledge•10 minutes
- Check your understanding•10 minutes
- Check your knowledge on lift ceiling•10 minutes
- Check your knowledge•10 minutes
- Quiz•10 minutes
1 discussion prompt•Total 10 minutes
- About stall•10 minutes
As we know how to create lift, let's use it now to actually control the trajectory. We will first look at how to change our flight direction in the horizontal plane by doing a turn. We will then look at the change in the vertical plane when we pull up or push over. Sometimes, alteration of the trajectory is due to external factors like turbulence, which may result in unwanted load factor spikes. We will determine what we can do to reduce this nuisance.
What's included
6 videos3 readings3 assignments1 discussion prompt
6 videos•Total 19 minutes
- Trajectory, bank angle and load factor•4 minutes
- Control technique•3 minutes
- Rate of turn•2 minutes
- Practical: Analysing a turn in DR400•5 minutes
- Manoeuvering•3 minutes
- Vertical gust•3 minutes
3 readings•Total 2 minutes
- Summary•2 minutes
- Practical: Let's fly a turn with Stephane•0 minutes
- Summary•0 minutes
3 assignments•Total 30 minutes
- Quiz•10 minutes
- Quiz about turn•10 minutes
- Quiz about manoeuvering•10 minutes
1 discussion prompt•Total 10 minutes
- Piloting technics•10 minutes
Test your knowledge.
What's included
1 reading1 assignment1 discussion prompt
1 reading•Total 10 minutes
- Summary•10 minutes
1 assignment•Total 45 minutes
- General assessment•45 minutes
1 discussion prompt•Total 10 minutes
- Discussion to close the course•10 minutes
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Reviewed on Apr 9, 2022
Really great explanation and videos, a few more animations would have made topics more clearer
Reviewed on Jul 14, 2023
Very enjoyable, 100% reccomend. It gave me an opportunity to see what i cold be studyinf n higher education, and further cemented the idea that aerospace is what i would like to persue.
Reviewed on Feb 11, 2023
Need more practice questions to better prepare for the test, a printable booklet would be nice
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