Smarter Every Day - How Helicopter Autorotation works

Destin livin' and lovin' life!

YouTube: GET SMARTER SECTION

Watch all the Smarter Every Day videos about helicopters:
https://www.youtube.com/watch?list=PL...

Tail Number CGYYW is a 2011 Robinson R44 II

The rotors can free wheel because of something called a "Sprag Clutch". https://en.wikipedia.org/wiki/Sprag_c...

You'll note that I didn't call out the stall region of the rotor system on this video. It's the inner 20% of the rotor.

https://en.wikipedia.org/wiki/Autorot...

The graphical elements that are on page 1-46 and 1-47 of this manual were a huge help:
http://armypubs.army.mil/doctrine/DR_...

The type of aircraft int his video is an R-44
vilsays...

This should be easier to balance in reality because you can feel the rate of fall changing and hear the rotation speed of the blades changing. Doing this with instruments is probably an order of magnitude more difficult.

nanrodsays...

At 6:18 you can see my old house next to Destin's chin, or you could if the sky wasn't hazy and you had really good eyesight.

transmorphersays...

I noticed at the end of the video it briefly came up with Romans 14:19. I wonder if he'll do a "Smarter Every Day" on the absurdity of religion.

The funny thing about that passage is that, like most religious passages can mean almost anything you want it to. To me it ironically means to give up religion, yet to someone else it could justify a nuclear war.

articiansays...

I could be way off, but I had the impression he was pretty religious in the first place.

transmorphersaid:

I noticed at the end of the video it briefly came up with Romans 14:19. I wonder if he'll do a "Smarter Every Day" on the absurdity of religion.

The funny thing about that passage is that, like most religious passages can mean almost anything you want it to. To me it ironically means to give up religion, yet to someone else it could justify a nuclear war.

Aziraphalesays...

It's totally intellectually dishonest to use one standard of reason and knowledge for everything else, and then abandon that system entirely for one particular idea just because you would prefer it to be true. Shame on you Destin, how do you live with that kind of cognitive dissonance?

articiansaid:

I could be way off, but I had the impression he was pretty religious in the first place.

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