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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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To: Chode

Chode, I may have avoided giving you a straight answer on the facing into the wind thing. The direction of approach could be modified as winds changed directions, so that at touchdown the aircraft could be facing in the wind.

You could approach from any direction on the circle, as the wind shifted prior to your approach.

With straight runways you cold still be off by 22 degrees, even if you were on the best of a North/South or East/West runway.


121 posted on 04/25/2017 5:34:36 PM PDT by DoughtyOne (Happy days are here again!)
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To: DannyTN

Actually the runway should be in the form of a spiral-
That way you`ll never lose your luggage.


122 posted on 04/25/2017 5:35:15 PM PDT by bunkerhill7 ((("The Second Amendment has no limits on firepower"-NY State Senator Kathleen A. Marchione."))))))
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To: C210N

Hey, pilots actually did use inclined glaciers to land on Mt. McKinley going uphill to slow them.

Turned around and went downhill for takeoff, might of had a little drop, going over the edge.

First guy to do that ... it worked.


123 posted on 04/25/2017 5:35:48 PM PDT by Scrambler Bob (Brought to you from Turtle Island, otherwise known as 'So-Called North America')
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To: Chode

It just dawned on me I’ve been using 22 instead of 45 degrees.

I should have said on straight runways you could still be off by 45 degrees.

Sorry about that.

I landed at LAX one afternoon with a cross-wind of 50-60 mph. It was rugged.

That’s the wind speed I overheard the stewards discussing.


124 posted on 04/25/2017 5:36:35 PM PDT by DoughtyOne (Happy days are here again!)
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To: redcatcherb412
" digging the wingtip into the runway "


125 posted on 04/25/2017 5:37:11 PM PDT by TexasGator
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To: bunkerhill7

A man ahead of his time...

“:^)


126 posted on 04/25/2017 5:37:32 PM PDT by DoughtyOne (Happy days are here again!)
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To: DoughtyOne
planes could use articulated landing gear like the B-52
127 posted on 04/25/2017 5:37:45 PM PDT by Chode (My job is not to represent the world. My job is to represent the United States of America-#45 DJT)
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To: discostu

Yeah,

Some airport have maybe three runways, like a triangle, which will ‘approximate’ a circle, given enough dx/dy and stuff like that.


128 posted on 04/25/2017 5:37:52 PM PDT by Scrambler Bob (Brought to you from Turtle Island, otherwise known as 'So-Called North America')
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To: southland

How would the ILS work? Curved radio signal for the glideslope and localized?


129 posted on 04/25/2017 5:40:47 PM PDT by 6AL-4V
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To: Chode

Perhaps so.

It’s a strange idea, and there are probably a myriad of issues associated with it.

Take care.


130 posted on 04/25/2017 5:40:53 PM PDT by DoughtyOne (Happy days are here again!)
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To: 6AL-4V

Localizer not localized.


131 posted on 04/25/2017 5:41:51 PM PDT by 6AL-4V
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To: discostu

“It makes runways WAY more expensive to build,”

Hold NASCAR events on the runway a few times a year to offset costs. :-0


132 posted on 04/25/2017 5:46:02 PM PDT by Rebelbase (Deportation mayhem is just birthing pains for a new America.)
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To: 6AL-4V

“How would the ILS work? Curved radio signal for the glideslope and localized?”

shhh .... GPS ....


133 posted on 04/25/2017 5:51:02 PM PDT by TexasGator
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To: bunkerhill7; Daffynition
Confucius say man who circle airplane on ground buy round-trip ticket

Lol. What would they call these things anyways, rudderies?

Daf, this thread needs an updated variant on the turkey circle.


134 posted on 04/25/2017 5:54:34 PM PDT by Ezekiel (All who mourn(ed!) the destruction of America merit the celebration of her rebirth.)
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To: TexasGator

“In 1941, three new 24-passenger DC-3s were flown in formation from Oakland, California, to Honolulu in 13 hours and 54 minutes — it was the longest over-water flight made by a DC-3.”
https://www.hawaiianairlines.com/about-us/history

It’s probably a good thing that no one told the pilots that it was too far.


135 posted on 04/25/2017 6:00:17 PM PDT by PAR35
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To: Nifster
Seems to me changes in both have been concurrent. As airplanes change most airports became inadequate particularly runway length and endurance. As airports changed, they enabled more radical changes in airplane design.

The A-380 is a classic example. Economics logic says move more people with fewer airplanes. Reality says most airports are unable to handle the bulk of the plane or the number of passengers. "Super hubs" have evolved because of that.

136 posted on 04/25/2017 6:03:13 PM PDT by pfflier
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To: DoughtyOne
you do the same
137 posted on 04/25/2017 6:06:15 PM PDT by Chode (My job is not to represent the world. My job is to represent the United States of America-#45 DJT)
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To: mountainlion

Wonder if they come equipped with yield signs.


138 posted on 04/25/2017 6:06:56 PM PDT by Rome2000 (SMASH THE CPUSA-SIC SEMPER TYRANNIS-CLOSE ALL MOSQUES)
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To: PAR35

That was a delivery .... NO PASSENGERS!


139 posted on 04/25/2017 6:07:47 PM PDT by TexasGator
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To: Scrambler Bob
Turned around and went downhill for takeoff, might of had a little drop, going over the edge.

Sort of like Benito Mussolini, Otto Skorzeny and the pilot in a two seater plane taking off from Gran Sasso?

140 posted on 04/25/2017 6:16:28 PM PDT by PAR35
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