WEBVTT
Kind: captions
Language: en

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This is the St George Wharf Tower-

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the enormous residential block,

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that is nearly completed --

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in Vauxhall.

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Now, the start of 2013

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a helicopter crashed into the crane, that was building this... building.

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And, well...

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It was the first fatal helicopter crash in London,

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since records began.

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But the reason those are so rare,

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is because there is a massive safety precaution in London:

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Helicopters must follow the river.

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And there are two reasons for that:

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One, is that the London City Airport flight path

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ends at London City Airport,

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about 8 miles that way.

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In fact, you can see a plane coming in now.

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That way air traffic control now that

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over the river there might be helicopters,

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but without special permission:

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without a police helicopter, an air ambulance,

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or someone who's filed a filming permit months in advance there...

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Okay, it is windy up here,

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and that is a long way town.

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Without special permission,

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air traffic control know that

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there won't be helicopters in the way of the planes.

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But the second reason is more important,

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and that is:

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if a helicopter suffers an engine failure ,

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most pilots-- most qualified pilots--

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will be able to put the helicopter down safely,

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because helicopters can do something called "autorotation"--

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they can powered by the air going through the blades

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as they fall--

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and make a safe landing.

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But where's a safe landing spot in a city this big?

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You're probably going to hit a building or a person,

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no matter where you come down,

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unless you are flying over the river

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and following its path,

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in which case, if your engine suddenly fails

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you're going to be fine.

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A bit wet, but fine,

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unless of course,

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someone puts an enormous building in the way

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and it's foggy.

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And that

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is something you've might not have known!

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And I'm getting down from here now.

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Seriously, that's a really long way down!

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