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Circular Runways: Engineer Defends His Proposal
World Hacks, the British Broadcasting Company ^ | 04/21/2017 | Dougal Shaw

Posted on 04/25/2017 2:09:26 PM PDT by DoughtyOne

Last month we published a video arguing the case for circular runways at airports, as part of a series called World Hacks. It took off and went viral.

The video has had more than 36 million views on Facebook and generated heated debate on social media - including within the aviation community. Many people are sceptical about the concept.

So we decided to hand-pick some of the top concerns and put them straight to the man proposing the idea: Dutch engineer Henk Hesselink.

This is what he had to say.

(Excerpt) Read more at bbc.com ...


TOPICS: Business/Economy; Extended News; Miscellaneous
KEYWORDS: circular; runway
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1 posted on 04/25/2017 2:09:26 PM PDT by DoughtyOne
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To: DoughtyOne

Dumb as dog doo doo


2 posted on 04/25/2017 2:17:55 PM PDT by al baby (Hi Mom Its a Joke friends)
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To: al baby

Maybe yes. Maybe no.


3 posted on 04/25/2017 2:20:09 PM PDT by DoughtyOne (Happy days are here again!)
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To: DoughtyOne

If I can’t drive to my destination, I’m not going.


4 posted on 04/25/2017 2:21:01 PM PDT by granite (The heart of the wise inclines to the right, but the heart of the fool to the left - Ecc 10:2)
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To: DoughtyOne; al baby

I’ll take the window seat away from the centrifugal force.
Just encase going around in circles causes someone to puke.


5 posted on 04/25/2017 2:21:36 PM PDT by DannyTN
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To: DoughtyOne

I don’t think there’s any maybe there. It makes runways WAY more expensive to build, makes multiple runways largely impossible and gains... nothing.


6 posted on 04/25/2017 2:23:09 PM PDT by discostu (Stand up and be counted, for what you are about to receive.)
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To: DoughtyOne

As a former AF pilot, this idea horrifies me. The last thing I want to do is engage nose-wheel steering immediately after touchdown.


7 posted on 04/25/2017 2:24:05 PM PDT by linear (The truth brooks no arbiters.)
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To: discostu

It solves the angry runway problem.....


8 posted on 04/25/2017 2:27:14 PM PDT by Paladin2
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To: al baby
This is what he had to say

Doesn't matter what he has to say. This was looked at seriously 50 years ago, when I was in flight school. The Physics alone make it unsafe.

9 posted on 04/25/2017 2:27:30 PM PDT by Ace's Dad (BTW, "Ace" is now Captain Ace. But only when I'm bragging about my son!)
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To: DoughtyOne

Traffic circles for airplanes? What could possibly go wrong?


10 posted on 04/25/2017 2:28:06 PM PDT by mountainlion (Live well for those that did not make it back.)
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To: DoughtyOne

He’s Dutch, he’s probably consuming edibles in hash bars.


11 posted on 04/25/2017 2:29:24 PM PDT by EEGator
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To: granite

So nothing will change for you. “:^)


12 posted on 04/25/2017 2:29:30 PM PDT by DoughtyOne (Happy days are here again!)
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To: DoughtyOne

They actually tried this at Wright-Patterson AFB (then Wright Field) during WWII.
There’s a reason the idea didn’t catch on then.


13 posted on 04/25/2017 2:29:59 PM PDT by Joe 6-pack (Qui me amat, amat et canem meum.)
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To: DannyTN

The runway is three miles around. There won’t be much centrifugal force.


14 posted on 04/25/2017 2:30:22 PM PDT by DoughtyOne (Happy days are here again!)
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To: DoughtyOne
Clever and breaking the norm. The radius of the circular runway will be the critical feature. The larger the radius, the closer to "apparent straightness" the runway will be. That means less bank for a landing airplane and less bank for runway construction.

Diminishing returns says too large of a radius makes the airport an impractical giant. On the plus side, urban encroachment will not diminish runway length.

Remember, it was initially difficult to land airplanes on a ship. It was thought to be very dangerous to land the shuttle in the glide mode with no go-around capability. Some people are stuck on the concept that future airplanes with be still configured as they are today.

15 posted on 04/25/2017 2:32:24 PM PDT by pfflier
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To: discostu

From the video.

The runway can handle three to four times the traffic of a normal runway.

You can alter the approach on extremely windy days.

You can also alter the approach to avoid only one approach area having to bear the brunt of the noise all the time.

I’m not sold on it, but some of the benefits seem reasoned.


16 posted on 04/25/2017 2:33:25 PM PDT by DoughtyOne (Happy days are here again!)
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To: linear

Push button Airbus pilots- Good luck!


17 posted on 04/25/2017 2:33:27 PM PDT by Dr. Ursus
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To: DoughtyOne

Been there, done that.

Bunker Hill Outlying Field #8 / Naval Outlying Field 11713 /

Converse Airport (1I8), Converse, IN

http://www.airfields-freeman.com/IN/Airfields_IN_N.htm

About 2/3rds of the way down.


18 posted on 04/25/2017 2:33:58 PM PDT by prairie dog
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To: linear

Thank you for your input. Perhaps that’s a deal killer.

I’m not convinced the curvature will require you to engage the nose-wheel immediately, but perhaps I’m not understanding your point clearly.


19 posted on 04/25/2017 2:35:15 PM PDT by DoughtyOne (Happy days are here again!)
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To: DoughtyOne

The runway is 3km long, not 3 miles. This is not much longer than your average runway at a major airport, which is why they’ve made the runway banked. The forces would be noticeable.


20 posted on 04/25/2017 2:36:56 PM PDT by linear (The truth brooks no arbiters.)
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