Who waits to open his or her parachute , terminal velocity is around 150 miles per hour. Felix Baumgartner is expected to hit that at around 5,000 feet. Of course, by then, he'll already have dropped more than 100,000 feet.Brian Todd dives into the details on this story.

Later this summer, Australian daredevil Felix Baumgartner will attempt the longest and highest freefall ever, from about 120,000 feet above sea level. That's more than 22 miles. If he pulls it off, he'll also break the speed of sound. No one's ever gone outside a plane or spacecraft to fly more than 690 miles per hour.

Some of the more tense moments of this mission will be when Felix Baumgartner steps out of that capsule and into the stratosphere. At that point, the only thing protecting him from certain death will be this helmet and this high pressure space suit. This is similar to ones worn by U2 spy plane pilots. But those pilots are about 50,000 feet closer to Earth than Felix Baumgartner's going to be.

There's only one person alive who can fathom all this, retired Air Force Colonel Joe Kittinger, the man whose record Fearless Felix will try to break. Kittinger jumped from 102, 000 feet in 1960.

I know exactly what he's about to go through.

What is it?

He's going to be awed by being at that altitude and that view that he's got. But he's also awed with the

responsibility, because he's got a bunch of people on the ground been working their rear ends off for 4-5 years with the goal to get him down. And it's hostile up there. You don't want to hang around if you don't have to.

Like Kittinger, Baumgartner will be taken to the stratosphere in a capsule pulled by a helium balloon. It's a massive undertaking called the Red Bull Stratos Project.

Your first time here, you're like a child in a candy store.

Oh, yes, I mean, I was amazed.

As Felix, Joe and I move around the Air and Space Museum, Felix says the sight of John Glenn's and Yuri Gagarin's space suits scares him.

If you compare it to my suit, I'm not sure if I would have done this in the old days with that kind of equipment.

Kittinger is now a consultant on the project, who's in Baumgartner's ear on the test jumps.

How important is hearing his voice going to be to you when you're up there?

It is extremely important, because this is what I figured on my last test jump when I was going up. Sometimes we lost communication for a couple of seconds. And immediately you can feel how lonely you feel, you know. So I wanted to hear that voice because I'm so used to this. Every time I'd get practicing on the ground, Joe was talking to me. So I'm so used to that voice and it makes me feel safe.

A mission that will obviously be tough to top, and it doesn't look like Felix Baumgartner's going to try to. He says after this jump, he'll pursue his long-time dream of becoming a helicopter rescue pilot -- Brian Todd, CNN,Washington.

Who waits to open his or her parachute , terminal velocity is around 150 miles per hour. Felix Baumgartner is expected to hit that at around 5,000 feet. Of course, by then, he'll already have dropped more than 100,000 feet.Brian Todd dives into the details on this story.

这个人等待着打开他或她的降落伞,末速度约为每小时150英里。费利克斯·鲍姆加特纳预计将达到约5000英尺。当然,到那时,他将已经下降了不止100000英尺。布莱恩·托德有这个故事的细节报道。

Later this summer, Australian daredevil Felix Baumgartner will attempt the longest and highest freefall ever, from about 120,000 feet above sea level. That's more than 22 miles. If he pulls it off, he'll also break the speed of sound. No one's ever gone outside a plane or spacecraft to fly more than 690 miles per hour.

今年夏天晚些时候,澳大利亚蛮勇的费利克斯·鲍姆加特纳将尝试海平面120000英尺以上最长且最高的自由落体。那将超过22英里。如果他把它关掉,他还将打破声音的速度。没有人在飞机或太空船外面以超过每小时690英里的速度飞行。

Some of the more tense moments of this mission will be when Felix Baumgartner steps out of that capsule and into the stratosphere. At that point, the only thing protecting him from certain death will be this helmet and this high pressure space suit. This is similar to ones worn by U2 spy plane pilots. But those pilots are about 50,000 feet closer to Earth than Felix Baumgartner's going to be.

更紧张的一些时刻将会是这次任务的步骤，费利克斯·鲍姆加特纳弹出座舱进入平流层。在这一点,唯一保护他免受死神威胁的将是这顶头盔和这种高压宇航服。这类似于U2间谍飞机飞行员的穿着。但那些飞行员接近地球距大约50000英尺，而费利克斯·鲍姆加特纳也将进行挑战。

There's only one person alive who can fathom all this, retired Air Force Colonel Joe Kittinger, the man whose record Fearless Felix will try to break. Kittinger jumped from 102, 000 feet in 1960.

只有活着的人能够理解这一切,退休的空军上校乔·基廷格,他的记录将被无所畏惧费利克斯尝试打破。基廷格在1960年上升到了102000英尺。

I know exactly what he's about to go through.

我确切知道他将要去打破这一纪录。

What is it?

这是什么?

He's going to be awed by being at that altitude and that view that he's got. But he's also awed with theresponsibility, because he's got a bunch of people on the ground been working their rear ends off for 4-5 years with the goal to get him down. And it's hostile up there. You don't want to hang around if you don't have to.

他要面对的是在高海拔。但他也因为责任令人敬畏,因为他有一个工作了五年的地上团队,这个团队的目的是为了把他弄下来。如果你根本不需要，那就不必大费周章。

Like Kittinger, Baumgartner will be taken to the stratosphere in a capsule pulled by a helium balloon. It's a massive undertaking called the Red Bull Stratos Project.

就像基辛格一样,费利克斯将会乘坐一只氦气球被带到平流层。这是一个称为红牛斯特拉托斯项目艰巨的任务。

Your first time here, you're like a child in a candy store.

你第一次来这里时,你就像在糖果店里的一个孩子。

Oh, yes, I mean, I was amazed.

哦,是的,我的意思是,我大吃一惊。

As Felix, Joe and I move around the Air and Space Museum, Felix says the sight of John Glenn's and Yuri Gagarin's space suits scares him.

至于费利克斯，乔和我在航空航天博物馆周围四处走到, 费利克斯称看到约翰·格伦和尤里·加加林的太空服把他吓着了。

If you compare it to my suit, I'm not sure if I would have done this in the old days with that kind of equipment.

如果你把它和我的穿着比较,我不确定自己在过去的日子中是穿着这样一身设备完成的。

Kittinger is now a consultant on the project, who's in Baumgartner's ear on the test jumps.

基廷格现在是这个项目的咨询师,他是鲍姆加特纳准备测试跳跃的保障者。

How important is hearing his voice going to be to you when you're up there?

重要的是当你在那里时如何听到他的声音?

It is extremely important, because this is what I figured on my last test jump when I was going up. Sometimes we lost communication for a couple of seconds. And immediately you can feel how lonely you feel, you know. So I wanted to hear that voice because I'm so used to this. Every time I'd get practicing on the ground, Joe was talking to me. So I'm so used to that voice and it makes me feel safe.

这是非常重要的,因为这是我认为在自己上次测试跳的时候,我正在上升。有时候我们在几秒钟内失去了联系。你可以感觉到, 你感到即刻的孤独感,你明白的。所以我想听到声音,因为我已经对此感到习惯。每次我都要在地上练习,乔和我说话。所以我很熟悉这个声音,这让我觉得很安全。

A mission that will obviously be tough to top, and it doesn't look like Felix Baumgartner's going to try to. He says after this jump, he'll pursue his long-time dream of becoming a helicopter rescue pilot -- Brian Todd, CNN,Washington.

这显然将是一项艰巨的认为,它看起来不像是费利克斯·鲍姆加特纳想要去尝试的。他称在这次跳跃后,他会追求自己长期以来成为一个救援直升机飞行员的的梦想—CNN,布莱恩·托德,华盛顿报道。