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cover of episode Do airplanes have a speed limit?

Do airplanes have a speed limit?

2024/12/19
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Moment of Um

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Bobby Sharp
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Mark Sanchez
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Mira
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Mira: 提出了关于飞机是否有速度限制的问题。 Mark Sanchez: 简要概括了飞机速度限制的复杂性,指出低于10000英尺存在速度限制,高于10000英尺则技术上没有限制,但实际速度受多种因素影响。 Bobby Sharp: 详细解释了飞机速度限制的原因。低于10000英尺,尤其是在机场附近,空域拥挤,为了安全起见,需要降低速度,以确保飞机有足够的时间进行观察和规避。高于10000英尺,空域开阔,飞机数量减少,因此取消了速度限制。他进一步解释了低于2000英尺的更严格速度限制,是为了在机场附近低空飞行时,增加飞机间的可见性和规避碰撞风险。他还指出,大多数客机的巡航速度约为575英里/小时,高度越高,速度可以更快,这类似于城市街道和高速公路的区别,高度越高,空域越宽阔,飞机速度也就越高。 Mira: 提出了一个关于飞机速度限制是否存在的问题,引发了对飞机飞行速度和安全性的讨论。 Mark Sanchez: 对Mira的问题进行了总结,指出飞机速度限制与飞行高度有关,低于10000英尺存在速度限制,高于10000英尺则技术上没有速度限制,但实际速度受多种因素影响。 Bobby Sharp: 作为一名空中交通管制员,他从专业的角度详细解释了飞机速度限制的原因。他指出,在低于10000英尺的空域,特别是机场附近,由于飞机数量多,飞行高度低,为了安全起见,需要限制飞机速度,以确保飞机有足够的时间进行观察和规避。而在高于10000英尺的空域,由于飞机数量减少,空域更宽阔,因此取消了速度限制。他进一步解释了在低于2000英尺的空域,速度限制更为严格,这是为了在机场附近低空飞行时,增加飞机间的可见性和规避碰撞的风险。他还补充说明,大多数客机的巡航速度约为575英里/小时,高度越高,速度可以更快,这类似于城市街道和高速公路的区别,高度越高,空域越宽阔,飞机速度也就越高。

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From the brains behind Brains On, this is the Moment of Um. Um, um, um, um, um. Moment of Um comes to you from APM Studios. I'm Mark Sanchez. Um.

Folks, this is Captain Sanchez, and I'll be your pilot for this episode. On behalf of the entire crew, welcome aboard Moment of Air Flight 105. Nonstop service from Minneapolis to Los Angeles. We will be flying at an altitude of 36,000 feet at a ground speed of 570 miles per hour.

At this time, let's make sure your seat backs and listening ears are in their full upright position. And that your seat belts are correctly fastened. I'm sorry, what? But wait, no, that's only if you're below 10,000 feet. Barry, no! Well, I guess that's true. Okay, will you just let me get to my announcements? Yes.

I'm Mira from St. Paul, Minnesota. My question is, do airplanes have a speed limit?

The short answer is yes and no. Under 10,000 feet, airplanes must not exceed 250 knots, and that's about 287 miles per hour. But above 10,000 feet, technically there is no speed restriction, but there are several factors that go into determining an airplane's speed. Well, hello, my name is Bobby Sharp. I'm an air traffic controller at Atlanta Center. So, okay, the whole thing about the 10,000 feet thing.

The reason that you have a different restriction for speed under 2,000 feet is because you're getting into those terminal areas near airports. You got a lot of planes coming in and leaving out. You got a lot of planes that are just flying around sightseeing kind of low to the ground. You want to kind of slow down your speed just to make sure that those planes that are seeing and avoiding have adequate time to see and avoid. So once you get above that, when it's a little bit less traffic, then those speed restrictions are, you know, removed.

For most of your passenger jets, the average cruising speed is going to be about 575 miles per hour. So you can go a little bit faster once you get a little bit higher and there's less planes that you have to encounter. Below 10,000 feet is kind of like, you know, city streets where it's kind of like slower traffic. But above 10,000 feet, it's kind of like the highway wide open. Everybody's going fast and you got more room to actually get up to speed. Um, uh,

Okay, so we definitely have a handle on airplanes and speed limits now. But that got me wondering about another fast-flying thing in the sky. Birds! I looked up the fastest bird in the world, and it's the peregrine falcon, who, when swooping, can reach speeds of up to 242 miles per hour. Can you believe that? What do you have to say for yourself, parrots? And guess what? The gals are larger than the males.

So don't make a female peregrine falcon mad. She might just swoop down on you and you won't even have time to react. If you like this episode, take a second to subscribe to Moment of Um wherever you listen to podcasts. And if you feel like it's about to rain, don't worry. Check out the Forever Ago podcast where we have a whole episode on the history of umbrellas. If you have a Moment of Um question, we'd love to help you answer it. Drop us a line by going to brainson.org slash contact.

See you tomorrow and the next day and every weekday. And until then, this is your captain saying it's been a pleasure serving you. And, uh...