yes they will take of as soon as they have enough lift... does not matter if the runway spins or not. might be a lil problematic for landing tho...
Title: Re: interesting concept
Post by: Rich46yo on March 31, 2017, 09:29:31 AM
Well I can tell you this. Theres a lot more then 3 airplanes taking off/Landing at any one time at a major airport during peak times. Tho this would have a lot of plus's to it, most of all no airplanes crossing runways and taxiways. And even more important, no vehicles. Just one vehicle making a wrong turn on to an active runway or taxi way can gumm up the schedule for hours.
Im just not sure this type of runway could handle the traffic tho.
Title: Re: interesting concept
Post by: Shuffler on March 31, 2017, 01:35:03 PM
Heaven forbid an aborted takeoff.
They need a passing lane. :)
Title: Re: interesting concept
Post by: PR3D4TOR on March 31, 2017, 01:43:07 PM
Well I can tell you this. Theres a lot more then 3 airplanes taking off/Landing at any one time at a major airport during peak times.
There are more than three aircraft on the runway at the same time?
Title: Re: interesting concept
Post by: Meatwad on March 31, 2017, 06:33:55 PM
I dont see a finish line, how do we know who wins
And what happens when there is a yellow flag, does we get a pace aeroplane with flashy yellow lights and all the planes behind it are all swerving back and forth?
Title: Re: interesting concept
Post by: save on March 31, 2017, 08:17:00 PM
I would go there and watch when runways have low friction, with ice and snow on them
Title: Re: interesting concept
Post by: PR3D4TOR on March 31, 2017, 08:41:06 PM
Airplanes drive very poorly. It might be a challenge keeping a few hundred thousand pounds of airplane under control on a slick side slope.
You could bank the track.
That might cause difficulties on rotation, but how will we know until we try it?
- oldman
Title: Re: interesting concept
Post by: PR3D4TOR on April 01, 2017, 02:11:44 AM
Yes the runway would have a progressively increasing bank. You start on the inner flat part, then as you accelerate centrifugal force will make the aircraft gradually and naturally climb the bank with little or no control input required.
Title: Re: interesting concept
Post by: FLS on April 01, 2017, 04:07:23 AM
We have that when the CV turns.
Title: Re: interesting concept
Post by: DaveBB on April 01, 2017, 07:40:20 AM
I worked at UPS's main hub as a youngster. I once counted the lights of nine 747s and MD-11s stacked up ready to land. I imagine the only reason they were not closer is wake turbulence (reference the C-141 incident in the First Gulf War tearing off engines for wake turbulence info).
Title: Re: interesting concept
Post by: PR3D4TOR on April 01, 2017, 12:53:24 PM
On landing wake turbulence and wingtip vortices are less of a concern since the trailing aircraft are above the leading aircraft. But there are limits to how fast a landed bird can get off the runway to make room for the next one in a safe manner.
https://youtu.be/fgHjVvqLXV8
Title: Re: interesting concept
Post by: bustr on April 01, 2017, 02:13:35 PM
What was the testing results of the 50's military testing of this concept?
Title: Re: interesting concept
Post by: Zimme83 on April 01, 2017, 02:27:41 PM
I'm very skeptic for a number of reasons, most of them summed up here: http://www.businessinsider.com/why-the-circular-runway-concept-wouldnt-work-2017-3?r=US&IR=T&IR=T
Title: Re: interesting concept
Post by: DaveBB on April 02, 2017, 12:46:07 AM
On landing wake turbulence and wingtip vortices are less of a concern since the trailing aircraft are above the leading aircraft. But there are limits to how fast a landed bird can get off the runway to make room for the next one in a safe manner.
https://youtu.be/fgHjVvqLXV8
Cool YouTube video bro. The planes still had plenty of time to get off the runway before the next one landed. Wake turbulence is a real phenomenon.