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  • Hey it's me Destin, welcome back to Smarter Every Day

  • If there is one thing that I learnt from the backwards bicycle experiment

  • Is that knowledge is not understanding

  • So a couple of years ago when I made the YouTube series about helicopter physics

  • I gained the knowledge of how they worked, but not really the understanding

  • so today on Smarter Every Day I'm going to try hover a helicopter

  • I've heard its the hardest thing you can do, specifically the Robinson 22

  • because it's a pure helicopter, there is no augmentation

  • So today on Smarter Every Day, we're going to learn what goes into doing that

  • and what her brain is doing

  • It's really quite incredible

  • Let's go get Smarter Every Day

  • I'm going to be straight up with you

  • I'm convinced that helicopter instructor pilots are either complete idiots, or incredibly brave

  • I mean think about it

  • They get into a helicopter with someone they've never met

  • and give them the controls

  • (Destin) This is my first rotary - (Brandon) crash course

  • No! I don't want to take a crash course

  • Notice that the controls are actually connected together

  • which means if I do something stupid

  • Brandon has to wrestle the controls out of my hand

  • Or just trust that I'm going to let go

  • That's crazy

  • Anyway, watch how bad I fly every single time he gives me the controls -

  • - and you can easily tell when he takes back over

  • (Brandon) Almost got it, there you go Pedal to your heading

  • (Brandon) laughs (Destin) crap

  • (Destin) So I'm going to try that, we're going to taxi down (Brandon)Yep

  • (Brandon) So you have the controls (Destin) I have the controls

  • (Destin) okay you got it - laughs

  • (Brandon) Alright so you have the cyclic, alright just try to hold this in this spot

  • (Destin) Alright (Brandon) Alright lets get us back over to that left...

  • (Destin) Good grief man

  • (Destin) Alright you're going to have to take over

  • (Destin) You got it? (Brandon) Yep I got it

  • (Brandon) A little forward

  • (Destin) My bad

  • (Destin) Jeez...Whoop, let's don't hit that sign I say

  • (ATC Chatter) Destin and Brandon laugh

  • (Destin) Yep you have the craziest job in the world

  • (Brandon) Yep, it has it's ups and downs

  • (Brandon) Most...(laughs)...that's an awful joke

  • (Destin) So there is a moment when it clicks? (Brandon) Yeah

  • (Destin) How long does it normally take? (Brandon) 6 - 8 hours

  • Destin laughs (Destin) How long is it going to take me?

  • (Brandon) 6 - 8 months Destin and Brandon laugh

  • My next instructor was Tommy We went in the R44 because the R22 was down for maintenance

  • I started to watch how they teach

  • And I noticed if I was starting to do something stupid their hands would get closer to the controls

  • - and when I was doing something easy, like flying straight and level, then they get more relaxed

  • Anyway, instructors call this part, when we're learning how to hover, the 'rodeo'

  • One of the best things that Tommy did for me was to teach me how to chill out

  • The thing I was doing was called a:

  • I was basically freaking out and over controlling, which made the whole aircraft wobble

  • Once I chilled, I was able to stabilise

  • Tommy got this to click in my brain by first teaching me how delicately to operate the controls

  • - and then showing me how two controls interact with each other

  • (Tommy) If you've moved the control, you've moved too much

  • (Destin) If you've moved the control... (Tommy) Do you see what I'm saying though? (Destin) Yeah

  • (Tommy) It's that whole thought process of it all

  • (Tommy) Alright, using the left pedal and only left pedal again, point me at that tree over there

  • (Destin) It's like...not even...a thought

  • (Tommy)Right! There you go, so something just clicked in your brain I can tell (Destin) Okay

  • (Destin) Okay, I have collective, I have pedals, I'm going to try point at the stop sign -

  • - I'm going to raise and I'm going to keep pointing at the stop sign (Tommy) Oh yeah, look something else just clicked

  • (Destin) So why do you have to move multiple controls to do one simple maneuver?

  • Turns out, THIS is the secret of hovering a helicopter

  • Okay, you've seen Rubik's cube solvers right? These guys that like have it stored somewhere in their brain stem

  • - and they can look at it and just instantly understand what they need to do right, to solve the thing

  • Well that's exactly what helicopter pilots are doing because if you think about it

  • - every time you change something, on a Rubik's cube, multiple inputs are changing all over the thing

  • It's a whole system, that's the way helicopters work

  • You have to come up with the most efficient and effective solution instantly to arrive at that perfect solution right of the bat

  • That's something you have to get in muscle memory somehow

  • Okay there are three main controls for a helicopter The first one is what we call: collective

  • Collective is your power that you are applying to the rotor system

  • Basically the swash-plate moves together and it rotates those rotor blades so that they're taking more or less of a bite out of the air

  • Now if you think about that, when you do that it applies more torque or less torque to the body of the helicopter right

  • So you have to counter-act that with the pedals

  • When she moves the pedals back and forth, that, of course, gives you more or less counter-torque on the body of the whole aircraft

  • Another thing that you need to think about is that tail-rotor is blowing air, so it's pushing the whole helicopter to the side, right

  • - so the way you counteract that is what? Cyclic

  • Cyclic is similar to collective in that it moves the rotors in the swash-plate, only it does it independently

  • You can see that it is changing the swash-plate so that the rotors are moving independently of each other

  • What she has to do, is she has to take all three of these inputs, make them work together

  • Now imagine that happening several times a second, and you have kind of an idea of what's going on in Michelle's brain. Right?

  • (Destin) No? (Michelle) This takes way more brain power (Destin laughs)

  • Alright the next flight is with Michelle, who happens to be really sassy

  • When we got into the R22, she says "just so you know I'm a little bit more hands off"

  • Which basically meant if I got into a pilot induced oscillation she was going to make me recover

  • (Destin) Am I doing this or are you doing this?...Okay, thank you (Michelle laughs)

  • I kind of didn't believe her though until she let me take off this horribly

  • (Destin)Golly (Michelle laughing) That's one way to do it (Destin laughing) You're awful

  • (Destin) So you ARE hands off (Michelle) And we're off (Destin laughs)

  • She basically forced me to straighten up by taking away my safety net, but I had gotten better really fast

  • (Michelle) I thought you said you sucked at this? (Destin) Ah, I do suck at this (Michelle) Eh, looks good to me

  • (Michelle) Alright you have the control (Destin) So, first I'm going to take off, so that's the first thing you have to do?

  • (Destin) I'm teaching you how to do this now right (Michelle laughs) I appreciate that

  • (Michelle) Perfect, there you go

  • (Destin) Alright...so there we are...we're hovering

  • (Michelle) We are hovering (Destin) Poorly, but we are hovering (Michelle) It's happening

  • (Destin) I want to try land over there (Michelle) Okay

  • (Destin) And act like I know what I'm doing, even though I dont

  • (Michelle) I believe in you (Destin) Okay, here we go

  • (Destin) I'm looking outside, looking outside, looking outside, looking outside

  • - I'm starting to commit, starting to commit, starting to commit, and we're down

  • (Destin) AH

  • (Michelle) I appreciate you teaching me that (Destin laughs)

  • (Destin) Oh okay, I want to hold this...BOOM

  • (Michelle) Very nicely done

  • Okay so Brandon was crazy enough to start with me, and I decided to end with him so I could assess my progess

  • By this point I could take off, navigate to where-ever he wanted me, shoot an approach and even land

  • But remember, my goal was to be able to hover, and do it well

  • Brandon had a test for that

  • (Brandon) There is this stick over here, I want to see if you can land on it

  • (Destin) Oh you want me to land with the skids ON that stick?

  • (Brandon) Am I on it? (Destin) Yeah you are!

  • (Brandon) I can't even... (Destin) You're on it!...Impressive!

  • (Brandon) I want to see you put it down on that same spot

  • (Destin) Okay, is this like the test? If I can do this, then I... (Brandon) You go solo right

  • (Destin) Dude! We're touching the stick (Brandon laughs)

  • (Destin) BOOM! Touching the stick (Brandon laughs)

  • (Destin) I'm very excited

  • (Destin) That's a big deal to me (Brandon) Yeah, that's actually really good

  • - it just helps teach you precision

  • So there you go, hovering a helicopter is hilariously hard

  • I thought it was up for up, down for down, left and right

  • Oh no, it's a complex coupled control system and you have to rewire your brain to make it happen It's pretty awesome

  • Anyway, thank you to the cities of St. Petersburg and Clearwater, Florida

  • They invited me down and sponsored this video to let me do this, it was amazing

  • I got to hover a helicopter, while my kids were playing on the beach below That's amazing

  • Also there is plenty of other stuff you can do

  • They didn't tell me how to promote them so I'm just going to tell you what we did

  • We went to the Chihuly museum, which is one of the most famous glass artists in the world

  • There's a museum down there Also the Salvador Dali museum

  • You know the guy, melting clocks, burning giraffes There is a huge museum of nothing but awesome art

  • Also there's an MC Escher traveling exhibit when we were there

  • We got to meet Winter the Dolphin, you've heard of this dolphin

  • The dolphin that's missing its tail and they're working with it

  • We had a blast

  • If you are looking for a place to take a vacation please consider the St.Pete Clearwater Florida area

  • It's a great place just to go chill on the beach

  • If you get a chance, visit St. Pete Clearwater

  • Please consider it, I'll leave a link in the video description

  • Ah, thank you for sponsoring this, I appreciate that

  • Anyway, I'm Destin, you're getting Smarter Every Day, have a good one

  • (Destin) So you don't think hovering is like that?...well you're already messing it up I can tell you that right now

  • (Destin) Are you going to be a fixed wing instructor? (Brandon) No, I have no desire to be a fixed wing instructor

  • (Destin) Why is that? (Brandon) I don't like flying airplanes

  • - think about it...can you do this right here in an airplane?

  • (Destin) No

  • (Brandon) Alright then

  • We're here with Winter, the dolphin, at Clearwater Marine Aquarium and her trainers

  • - and your names are? Cammy...and Julie

  • Alright and this is Winter's prosthetic tail

  • So this is were I practiced some helicopter maneuvers

  • And this is the Dali museum

  • (Destin) But you can do that with a helicopter quickly

  • (Destin and Michelle laugh)

Hey it's me Destin, welcome back to Smarter Every Day

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B1 中級

懸停直升機是搞笑的困難--每天更聰明 145 (Hovering a Helicopter is Hilariously Hard - Smarter Every Day 145)

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    林宜悉 發佈於 2021 年 01 月 14 日
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