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Flight mechanics - Propulsive balance and energy

Flight mechanics - Propulsive balance and energy

This course is part of Fundamentals of Flight mechanics Specialization

Instructor: Eric Poquillon

4,218 already enrolled

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3 modules

Gain insight into a topic and learn the fundamentals.

63 reviews

Intermediate level

Some related experience required

6 hours to complete

Flexible schedule

Learn at your own pace

3 modules

Gain insight into a topic and learn the fundamentals.

63 reviews

Intermediate level

Some related experience required

6 hours to complete

Flexible schedule

Learn at your own pace

What you'll learn

Describe the speed and altitude control of an airplane.
Describe relationship between thrust, speed and altitude.

Skills you'll gain

Details to know

Shareable certificate

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Assessments

12 assignments

Taught in English

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This course is part of the Fundamentals of Flight mechanics Specialization

When you enroll in this course, you'll also be enrolled in this Specialization.

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There are 3 modules in this course

This course is dedicated to energy management, i.e. speed and altitude control.

The various sources of drag are first described and modeled, as well as thrust origin, and evolution with speed and altitude. Using these models, we can evaluate the propulsive balance and derive important concepts like flight regimes, best climb speed, or propulsion ceiling. We take then a glance at cruise performances and the evolution of range with weight. This course is a part of the specialization "Fundamentals of Flight mechanics".

Module details

First we will look at the physics at the origin of drag and thrust, and derive basic models and representations like the drag polar.

What's included

5 videos5 readings4 assignments

5 videosTotal 21 minutes

Drag expression4 minutes
The drag polar4 minutes
Froudes's thrust theory3 minutes
Propeller devices types4 minutes
Propulsion equation and energy exchanges5 minutes

5 readingsTotal 27 minutes

Welcome !2 minutes
Glossary/Definiton of terms10 minutes
Summary5 minutes
Summary5 minutes
Summary5 minutes

4 assignmentsTotal 65 minutes

Quiz on drag modeling10 minutes
Quiz on thrust modeling15 minutes
Quiz on drag, thrust and energy10 minutes
Check your knowledge for week 130 minutes

We will see here how the airspeed chosen to fly a stabilized phase of flight, like climb, final approach, or cruise, affects the behavior of the airplane, and why certain speeds are optimal for a given phase.

What's included

7 videos2 readings4 assignments1 discussion prompt

7 videosTotal 15 minutes

Drag variation with speed3 minutes
Propulsion balance3 minutes
Regimes definition and properties2 minutes
Stability3 minutes
A reminder on climb and descent2 minutes
Best climb angle1 minute
Propelling device types2 minutes

2 readingsTotal 15 minutes

Summary10 minutes
Best climb speed and propelling device type5 minutes

4 assignmentsTotal 70 minutes

Self evaluation about propulsion balance10 minutes
Self evaluation about Regimes definition and stability20 minutes
Quiz about best climb speed10 minutes
Check your knowledge for week 230 minutes

1 discussion promptTotal 10 minutes

Discussion about low speed10 minutes

Our main subject here is the distance we can fly with a given payload and fuel quantity, and how it relates with the design and operational characteristics of the airplane.

What's included

4 videos2 readings4 assignments1 discussion prompt

4 videosTotal 16 minutes

Specific distance4 minutes
Cruise altitude4 minutes
Breguet-Leduc equation3 minutes
Payload range diagram5 minutes

2 readingsTotal 10 minutes

Summary5 minutes
Summary5 minutes

4 assignmentsTotal 105 minutes

Learning quiz about Cruise performance15 minutes
One question on payload range diagram15 minutes
Check your knowledge for week 330 minutes
General assesment45 minutes

1 discussion promptTotal 10 minutes

Conclusion and synthesis10 minutes

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Instructor

Instructor ratings

(15 ratings)

Eric Poquillon

ISAE-SUPAERO

4 Courses30,021 learners

Offered by

ISAE-SUPAERO

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Reviewed on Nov 18, 2022

Very good course, the final assessment is quite challenging so you need to learn seriously.

Reviewed on Apr 7, 2023

All courses are deisned very well and provides good Introduction Flight Mechanics. Being an Aerospace Engineer I have found it really helpful in revising all my previous topics.

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