Will circular runways ever take off?

Will circular runways ever take off?

Postby Burleysway on Thu 16 Mar 2017, 9:27 am

Interesting presentation by Henk Hesselink.

http://www.bbc.co.uk/news/magazine-39284294
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Burleysway

Re: Will circular runways ever take off?

Postby G-CVIX on Thu 16 Mar 2017, 10:30 am

Well, no.

That dramatic turn to camera at 00:24 is brilliant though.
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G-CVIX

Re: Will circular runways ever take off?

Postby Brevet Cable on Thu 16 Mar 2017, 10:44 am

Errr.....no !

Looks pretty, but I presume he's not a mechanical engineer, as his concept appears to ignore the concept of componant shock-loading resulting from landing +100ton aircraft on a 'banked circuit' ( maybe he should ask the NASCAR designers about it )
Brevet..( Irritating Welsh internet pedant since 1985 )
Not an enthusiast or a spotter..Meh !!
trolio fforwm swyddogol
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Brevet Cable

Re: Will circular runways ever take off?

Postby Seahornet on Thu 16 Mar 2017, 10:48 am

Where would they put the ILS localiser, etc...?
And as the smart ship grew,
In stature, grace and hue,
In shadowy silent distance grew the iceberg too....
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Seahornet

Re: Will circular runways ever take off?

Postby AlexC on Thu 16 Mar 2017, 10:51 am

It can't be April 1st yet, can it?
Pte. Aubrey Gerald Harmer, R. Suss. R. (att. to the Sherwood Foresters) KIA 26/9/1917 Polygon Wood, aged 19, NKG. RIP
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AlexC

Re: Will circular runways ever take off?

Postby aceyone on Thu 16 Mar 2017, 11:09 am

Gives a whole new meaning to " Go Around " :wink:
take only photos,leave only footprints
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aceyone

Re: Will circular runways ever take off?

Postby DerekF on Thu 16 Mar 2017, 11:11 am

Interesting idea. Aircraft landing gear design cases should be able to withstand the loads and ILS approaches will be replaced by GPS approaches anyway.
The downsides I see are that the departure heading will depend on your take-off dsitance which are likely to greater as bank increases drag. The banked runway angle will depend on speed - some aircraft it will suit, others not so much. For a given wind direction, the crosswind component will change continually making control tricky.

A better solution , but one less environmentally friendly would be tarmac in circular area allowing take-offs in any direction - like old grass airfields.

It's easier to be sceptical about these things but it's good to see people thinking "outside the box" This one might not work but other ideas will.
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DerekF

Re: Will circular runways ever take off?

Postby speedbird2639 on Thu 16 Mar 2017, 11:18 am

Not the 'best objection' but as I neither work in aviation nor have any training in matters such as stress loadings etc I thought those would be better left to more qualified people to comment on.

I think the main obvious point is that most towns/ cities big enough to need an airport already have one and they are not going to spend hundreds of billions of £ ripping it up just so the planes can guarantee to land into the wind or to save a bit of noise in the environment. If they were discussing this when air travel started to be come popular in the 1950's he may have a point but its 60+ years too late and all the infrastructure is in place now.
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speedbird2639

Re: Will circular runways ever take off?

Postby Stagger2 on Thu 16 Mar 2017, 11:42 am

Can't see why it wouldn't be perfect. Just a tad too early for April.
Every pilot knows how to fly an offset horizon approach, as do the landing-aids.
ATC..."Continue to the end & exit towards the middle, which is left today. If you find the end please update the tower before contacting ground. Caution tail-strike joining taxiway!"
The variable touchdown point is just as obvious as other traffic's enter & take-off point...NOT!
The wind shear over the rim is worse than a crosswind.
On both t/o & landing when crossing the 'rim' at an angle it won't have any effect on lift & stability, well not if they do Carrier landings & 'plant-it'.
All take-offs & landings will require Red or White Eco-smoke generators to make the 360 degree wake turbulence visible.
Designer's quote... "3, possibly 4 a/c could use the runway at the same time"....my quote...especially on days when the wind is in 4 directions??
Departure instructions..."Fly straight ahead at whatever heading your on at lift-off, Caution multiple other aircraft coming from every where. Confirm 20km good visibility today. Stay lucky mate!"
Emergency escape slide-chutes will be nearly horizontal on the up-slope & correspondingly more like Kitzbühel on the down-slope?
Let's hope all tyre-bursts or u/c failures are always on the 'inside of the circle' That way the stricken aircraft, debris & burning fuel will be on the flat bit & easier to clean-up! Wouldn't want a burning jet flopping over the 'rim' onto the affordable housing jammed around Carousel Airport.
The list is endless! I'm not a Airport designer...but I'm not on drugs either!!
It's not a well known fact that for a fixed major axis dimension the length of the sides of a rotated square are longer than the circumference of a same sized circle! Please donate to my "Just-wasting page" to fund next weeks project where I intend to re-invent the wheel.
Stagger2

Re: Will circular runways ever take off?

Postby Wissam24 on Thu 16 Mar 2017, 11:58 am

speedbird2639 wrote::clap: Another bite - just can't resist can they!


Says the person who threw in an irrelevant comment in the first place.

But since you're admitting to baiting for the sake of it...moderator action required? :question:

Keep it to Off Topic
Twitter: @samwise24 | Flickr: samwise24 | Ми-14/171Ш Flight Crew. Су-27 Flanker pilot. Host of the UKAR Party Plane
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Wissam24
UKAR Staff

Re: Will circular runways ever take off?

Postby paullangford on Thu 16 Mar 2017, 12:06 pm

Snow............just saying :cuppa:
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paullangford

Re: Will circular runways ever take off?

Postby Brevet Cable on Thu 16 Mar 2017, 12:45 pm

paullangford wrote:Snow............just saying :cuppa:

As in..."You know nothing, Jon..." ? :lol:

Nah!...snow's been factored in, hence the bank -- it'll just slide down & coalesce on the inner area. :biggrin:
Ice, on the other hand, could be really interesting.
Brevet..( Irritating Welsh internet pedant since 1985 )
Not an enthusiast or a spotter..Meh !!
trolio fforwm swyddogol
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Brevet Cable

Re: Will circular runways ever take off?

Postby paullangford on Thu 16 Mar 2017, 12:52 pm

Brevet Cable wrote:
paullangford wrote:Snow............just saying :cuppa:

As in..."You know nothing, Jon..." ? :lol:

Nah!...snow's been factored in, hence the bank -- it'll just slide down & coalesce on the inner area. :biggrin:
Ice, on the other hand, could be really interesting.


Ha ! Brevet :lol:

I was just thinking if it snowed or was icy, the aircraft would surely slide over the top lip.............centrifugal force and everything.
I mean they shut Heathrow these days if there's 1cm of the white stuff.....or cancel flights on the threat of it snowing, and that's on a flat and straight runway..................which is soon to be a ramp.
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paullangford

Re: Will circular runways ever take off?

Postby Burleysway on Fri 17 Mar 2017, 11:37 am

His research was funded by the EU, I wonder if they are going to take it any further.
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Burleysway

Re: Will circular runways ever take off?

Postby TIGER TIM on Fri 17 Mar 2017, 5:50 pm

In a round about way...........No :dizzy:
TIGER TIM


Re: Will circular runways ever take off?

Postby paullangford on Fri 21 Apr 2017, 8:39 am

starbuck wrote:He's back again..

http://www.bbc.co.uk/news/magazine-39643292


That story is going round in circles :cuppa:
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paullangford

Re: Will circular runways ever take off?

Postby borismorris on Fri 21 Apr 2017, 6:26 pm

starbuck wrote:He's back again..

http://www.bbc.co.uk/news/magazine-39643292


You've got to admit though, its a revolutionary idea.... ;-)
borismorris


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