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Destination Tomorrow - DT6 - Flight Simulator

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Destination Tomorrow Segment explaining how NASA uses flight simulators to assist in engineering aircraft.

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One of the most effective tools pilots and engineers use when learning about aircraft 00:00:00
is the flight simulator. 00:00:08
Simulators have been around almost as long as airplanes have. 00:00:10
In fact, in early models, pilots would practice flying by sitting in wooden barrels suspended 00:00:14
off the ground. 00:00:18
Simulators have come a long way since then, but the basic idea of making flying safer 00:00:20
hasn't changed. 00:00:24
Today, they are incredibly complex machines that are used not just to help pilots learn 00:00:25
to fly, but are used to run experiments or tests which can be too expensive or too dangerous 00:00:30
to attempt in flight. 00:00:34
I spoke with Marshall Smith at NASA Langley Research Center to find out how they work. 00:00:35
So, Marshall, what are the differences between NASA flight simulators and other simulators? 00:00:41
Well, the difference between NASA flight simulators and other simulators are mainly in the training 00:00:46
environment versus engineering and research. 00:00:52
Other types of simulators are used for training, and so they benefit one pilot or the pilots 00:00:55
that are out there learning to fly airplanes, but our simulators are used for developing 00:00:59
engineering concepts or things that make flying safer. 00:01:04
So what are some real-world problems that simulators have solved? 00:01:09
Some of the problems are related to safety. 00:01:12
For example, wind shear detection and avoidance was a big problem. 00:01:15
Wind shear occurs when you have a real strong downdraft, and it could occur from thunderstorms 00:01:19
or it could occur near a mountainside or even in clear air, but basically what happens 00:01:24
is it causes the plane to lose lift and crash, and 15 to 20 years ago, a lot of planes were 00:01:29
crashing because of wind shear problems, but engineering simulators were used at NASA particularly 00:01:33
to detect wind shears and also give them guidance as to how to get out of a wind shear condition 00:01:39
and actually land the plane safely. 00:01:45
Wind shear is rarely a problem anymore. 00:01:48
So that was like 15 or 20 years ago. 00:01:50
What are some current things that you're working on today? 00:01:52
Okay, some of the problems we're working on today involve synthetic vision, where we're 00:01:54
trying to give the pilot an out-the-window picture of what the world looks like if he 00:01:58
can't see. 00:02:03
If he's flying through clouds or it's really low visibility, he can look down at this display 00:02:04
and see what he would see if there was clear air outside of him. 00:02:09
Other things that we're working on are keeping planes properly spaced apart if they're doing 00:02:12
parallel approaches or on the ground. 00:02:16
If planes are taxiing around and air traffic control inadvertently tells somebody to go 00:02:19
in front of a plane, he has another method where he can determine that something bad 00:02:24
is happening. 00:02:28
So how have simulators changed over the years? 00:02:29
Over the past 15 to 20 years, simulators have changed dramatically, and that's largely due 00:02:32
to the computer revolution and changes in graphic systems from the entertainment industry. 00:02:36
These simulators have gotten much more accurate and detailed, the simulations themselves, 00:02:41
to the point that we can do a simulation and then go out and fly the real aircraft 00:02:45
and really find no differences in the two. 00:02:50
So are pilots the only ones using flight simulators? 00:02:53
Well, absolutely not. 00:02:55
Actually, our simulators are used by researchers who are engineers and technicians who are 00:02:56
developing all of these programs so that we can determine whether they'll be good for 00:03:02
the aviation industry or not. 00:03:06
And then pilots are brought in actually at the end of the program so that they can be 00:03:08
used as test subjects to determine whether the information then is going to be good enough 00:03:11
to take onto the airplane for further tests. 00:03:16
Pilots also help us develop the tests as well. 00:03:18
So Marshall, can you show me how the simulator works? 00:03:21
Sure. 00:03:23
We're actually at Dallas-Fort Worth right now, and we're going to take off from Dallas-Fort 00:03:24
Worth, and you're going to do it for us. 00:03:28
So you take your throttles, move them all the way forward, your flaps are already set, 00:03:30
and you're ready to go. 00:03:34
Start with this, right? 00:03:35
There we go. 00:03:36
All right. 00:03:37
As your airspeed gets up to about 1 feet, okay, you can pull back. 00:03:39
Go ahead and pull back. 00:03:41
There you go. 00:03:44
All right. 00:03:45
Now you can push forward a little bit. 00:03:46
And you just took off. 00:03:49
This is amazing. 00:03:53
If it's in the real aircraft, it's in this simulator. 00:03:55
This particular simulator is a copy of our 757 aircraft that we have at NASA that we 00:03:58
use for research. 00:04:03
It's a copy of the forward nose section. 00:04:04
So we actually have, if we have a particular research instrument in the aircraft, we'll 00:04:07
put it in the simulator as well. 00:04:10
You guys must have fun working up here. 00:04:12
It's a blast. 00:04:13
Look at me saying up here. 00:04:14
We're nowhere. 00:04:16
This is cool. 00:04:18
Thanks a lot, Marshall. 00:04:19
This has been so much fun. 00:04:20
It's been my pleasure. 00:04:21
You can come back anytime. 00:04:22
Thank you. 00:04:23
I will. 00:04:24
I just have one question. 00:04:25
Okay. 00:04:26
Where do I put the quarters? 00:04:27
Oh, that goes right over here. 00:04:28
Yeah? 00:04:29
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Idioma/s:
en
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:
546
Fecha:
28 de mayo de 2007 - 17:04
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
04′ 32″
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:
26.34 MBytes

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