This started off as a video on propellers, then took a turn towards early aviation history and myth busting.

In regards to propellers, I'll cover blade angle, pitch, aspect ratio, efficiency and more.

In regards to history I cover some myths about early aviation and the efforts of the Louis Bleriot, Santos Dumont, the Wright brothers and more.

Before anyone says anything, yes I know the difference between a blimp and a dirigible. However many of Dumont's designs including No. 9 are described as both blimps and Dirigibles and I couldn't find the plans to them, so I used both terms. Also, there is a middle ground in which some airships used blimps with a keel beam.

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Note: This is the second upload of this video. The first was visible to Patreons only. I made some changes to the public version based on Patreon suggestions. The primary changes were to subtitles, which are now easier to read and on screen a bit longer before fading out.