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First Flying Machines - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect segment exploring the first flying machines including their design and development. The host demonstrates the flight simulator of the original glider.

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And in order to learn how the Wright Brothers refined and improved their flying machines, 00:00:00
we're here at the Wright Experience Laboratory in Virginia. 00:00:07
We're talking with Ken High. 00:00:10
He's the founder of the Wright Experience. 00:00:12
Now, Ken, tell me, how did the Wright Brothers improve upon their flying machine designs? 00:00:14
Well, with each new design and each new flight test, they did small refinements and small 00:00:18
changes to their design. 00:00:24
There may have been many problems at any given stage of the flying machine's development, 00:00:26
but the Wrights only changed one thing at a time. 00:00:31
They were never confused about which change was causing which result. 00:00:34
Ken, that makes sense. 00:00:38
I mean, that way they could select the changes that worked and then continue to refine their 00:00:39
design. 00:00:44
That's right. 00:00:45
And, Jennifer, this is the result of all their hard work. 00:00:46
This is a flying reproduction of the Wright Brothers' 1902 glider. 00:00:48
Ken, this is quite different from their original kite, isn't it? 00:00:52
Not really. 00:00:55
It uses the same principle of wing warping and wing twisting that they used in the original 00:00:56
kite. 00:01:00
But what was so important and so radically different about this glider from their early 00:01:01
designs was that the 1902 glider was the first aircraft ever that solved the problem of controlling 00:01:05
an airplane in all three axes, pitch, roll, and roll. 00:01:12
Okay, Jennifer, this is a control for the elevator, which controls the pitch, which 00:01:17
is the up and down movement of the aircraft. 00:01:22
Control roll, I can shift the hip cradle back and forth. 00:01:25
Watch how the wings twist. 00:01:28
That would change the roll position of the aircraft during flight. 00:01:31
But also wired into the hip cradle is a control for yaw. 00:01:34
Watch how the tail moves at the same time as the wings are warping. 00:01:38
Ken, this is so cool, but can you really fly this? 00:01:41
Absolutely. 00:01:45
We have a 1902 simulator that you can fly. 00:01:46
Come on. 00:01:48
All right. 00:01:49
Jennifer, this is our 1902 glider simulator, and it was developed from the wind tunnel 00:01:50
test that we did on this machine. 00:01:55
Bill Haddon is our expert on this, and he is a good instructor. 00:01:57
He's going to check you out on this and tell you about the machine. 00:02:01
Great. 00:02:04
Nice to meet you, Bill. 00:02:05
Hi, Jennifer. 00:02:06
Tell me about the simulator. 00:02:07
This was based on the wind tunnel numbers generated by taking our full-scale glider 00:02:08
and putting it in the Langley full-scale tunnel in Hampton, Virginia, operated by Old Dominion 00:02:14
University. 00:02:19
And the results of the wind tunnel test were incorporated in a flight simulator by Burrell 00:02:21
Applied Research. 00:02:27
That's their business, making flight simulators. 00:02:28
So when you fly the simulator, you're flying actual wind tunnel data results. 00:02:30
So that's a lot of fun. 00:02:35
Would you like to try it? 00:02:38
I thought you'd never ask. 00:02:39
I'd love to try it. 00:02:40
Okay. 00:02:41
Okay, Jennifer. 00:02:42
On the left, you see your airspeed in knots. 00:02:43
That's 21 knots. 00:02:46
22. 00:02:47
Right there. 00:02:48
Airspeed control is critical. 00:02:50
If you get too slow, it'll stall, and too fast, it can dive into the ground. 00:02:51
It's just elevator control and hip cradle. 00:02:56
When you move the hip cradle, you're warping the wings to control roll, and you're also 00:02:59
getting rudder movement with it. 00:03:04
Well, it took some practice, and it wasn't real comfortable, but I think I got the hip 00:03:06
thing and the elevator thing going. 00:03:09
I was finally able to make a glide that lasted about 63 seconds. 00:03:11
Thank you so much, Bill. 00:03:17
Thank you. 00:03:18
You're welcome. 00:03:19
Well, how was it, Jennifer? 00:03:20
Oh, Ken, it was incredible. 00:03:21
It was incredible. 00:03:22
I'll tell you, it was a little uncomfortable, and it was kind of difficult to maneuver, 00:03:23
but I can really relate to how the Wright brothers must have felt. 00:03:25
They had a lot of stamina in order to be able to do this. 00:03:28
They sure did. 00:03:30
And this 1902 glider, all of their innovations are in this machine, is what they were striving 00:03:31
for. 00:03:36
By 1903, the Wrights were ready to add an engine and propellers. 00:03:37
The Wright brothers' breakthrough in propeller design came when they realized that a propeller 00:03:41
was merely a wing in rotation in a helical pattern, creating lift in the forward direction. 00:03:46
Once they saw the propeller in this way, they were able to use their wind tunnel data about 00:03:53
lift and drag to design an efficient propeller. 00:03:58
Jennifer, we also have a simulator of the 1903 Kitty Hawk flyer. 00:04:02
Would you like to fly this machine? 00:04:07
Of course I would, Ken. 00:04:08
Now, while I take flight on the 1903 flight simulator, why don't you check out how to 00:04:09
build your own flying machine and test its performance? 00:04:14
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Idioma/s:
en
Materias:
Matemáticas
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
200
Fecha:
28 de mayo de 2007 - 16:53
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
04′ 18″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
480x360 píxeles
Tamaño:
25.90 MBytes

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