In this video we go over some of the most important propeller concepts, some of which are misunderstood by most of people. Propeller theory is exceptionally complex, but I explain it in a simple and easy to understand way without going very deep into math and physics. Unless you are an aeronautical engineer or already know everything about propellers you can expect to go out of watching this video having a much increased understanding on the workings and limitations of airplane propellers.

Also watch this video to understand how an engine gearbox actually multiplies torque at the propeller:    • Propeller Speed Reduction TORQUE Incr...  

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Creative Commons Image Credits:

THUMBNAIL SR22author Matti Blume (https://creativecommons.org/licenses/...) cropped and cut background
Herc propauthor BrokenSphere (https://creativecommons.org/licenses/...) zoomed in
Bent propauthor Dtom (https://creativecommons.org/licenses/...) no changes
Transat MD03author Guillaume Paumier (https://creativecommons.org/licenses/...) no changes
Bathawkauthor Micro Aviation (https://creativecommons.org/licenses/...) no changes
C172autor Huhu Uet (https://creativecommons.org/licenses/...) no changes
Hueyauthor Sebastián Laguna (https://creativecommons.org/licenses/...) no changes
Epropsauthor Anubis2202 (https://creativecommons.org/licenses/...) zoomed in
C160author Carl von Einem (https://creativecommons.org/licenses/...) zoomed in
Robin DR400author Cjp24 (https://creativecommons.org/licenses/...) zoomed in
Pipistrel electroauthor Matti Blume (https://creativecommons.org/licenses/...) no changes
SR22author Matti Blume (https://creativecommons.org/licenses/...) zoomed in and overlaid arrows
F4U Corsairauthor Julian Herzog (https://creativecommons.org/licenses/...) zoomed in an overlaid arrows
Skyraderauthor Julian Herzog (https://creativecommons.org/licenses/...) no changes
Stalled wingauthor Deutsches Zentrum für Luftund Raumfahrt (https://creativecommons.org/licenses/...) no changes
Tachauthor RobbieMcConnel (https://creativecommons.org/licenses/...) overlaid arrows
C130 bladesauthor Hunini (https://creativecommons.org/licenses/...) no changes
Mitsubishi Zeroauthor Ken Fielding (https://creativecommons.org/licenses/...) no changes
Stearman authorJulian Herzog (https://creativecommons.org/licenses/...) zoomed in
Walking stickmanauthor zerodecoole (https://creativecommons.org/licenses/...) overlayed on different background, cropped and flipped

Chapters:
0:00 Propellers Introduction
0:52 Propeller Basics
1:46 Propeller Types and Variants
2:12 How Does a Propeller Work?
3:25 Pillars of Propeller Design
3:59 Forces Acting on a Propeller
4:53 Engine & Propeller Pairing
5:14 THRUST Blade Length
8:31 THRUST Blade Chord
9:11 THRUST Number of Blades
10:15 Blade Twist
11:19 Blade Pitch
17:21 What Else to Know