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The Wing In Ground (WIG) effect allows special aircraft to fly 100-300 km/h at 1/3 or less of the operating costs of conventional flights. Development has centered on WIG “boats” that take off, fly over and land on low-wave water, but a network of roadways might make high speed, inexpensive WIG transportation
over land a half-baked reality.
The wide, level paths could be made of packed, crushed rock or grassy plains trimmed by tumble-tolerant sheep (alliteration unintentional). Water and land use could be combined for a non-pressurized, “You may open your window”, flight from Miami to Dallas.
(?) Wing-in-Ground Effect
http://www.tc.gc.ca...ures/wingeffect.htm
[FarmerJohn, Oct 04 2004, last modified Oct 21 2004]
The WIG Page
http://www.se-techn...y.com/wig/index.php
[FarmerJohn, Oct 04 2004, last modified Oct 21 2004]
Aerodynamics
http://www.infinity...g_aerodynamics.html
[FarmerJohn, Oct 04 2004, last modified Oct 21 2004]
Tumble-tolerant penguins
http://www.urbanleg...uins_fall_over.html
An urban legend, however. [Cedar Park, Oct 04 2004, last modified Oct 21 2004]
(?) WIG craft?
http://www.dfcom.fr...hbw/images/red4.gif
I'd use one! [Jinbish, Oct 04 2004, last modified Oct 05 2004]
Pelican
http://www.boosman....rchives/000407.html
A really big airplane. [Freefall, Oct 04 2004, last modified Oct 21 2004]
Airfish - ground effect vehicle
https://newatlas.co...g-in-ground-effect/
[xaviergisz, Mar 01 2024]
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Nice, the windows stay closed at 300kph though, so the dog doesn’t find out just how floppy her ears really are. |
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intelligent, interesting internationally ingenious idea infused in infernal ingredients. |
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I just want the tumble-tolerant sheep. |
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do you want to talk about this? |
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Um... I just read that again... that didn't turn out quite right, did it? |
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its ok, Cedar, its just us two here - well, bris might be tidying up in the next room. we'll just forget it, eh? |
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(brushes off pride, reseats self at computer) |
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mind you, I will never look at you in quite the same again <sniggers> |
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seen that story before and ok, successfully diverted my attention. |
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300kph in ground effect? One wind shear and it will truly be wing in ground . . . a ways. |
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Completely off topic, but will there be some sort of Half Bakery Con/get together thing occuring in london any time after October the Tenth? |
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"--Your lawful, wedded shepard?" |
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Fine, as long as they don't have lamp-posts |
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Strangely enough, I’ve seen this done at high altitude, but never over ground/water. Can the danger be removed? - I don’t think so, but will keep thinking. |
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Might be useful for some overland routes, given current topography, but new swathe- flattening (yielding wide, indefinitely treeless firebreaks &c.) for this purpose would likely greatly impact local biomes. Add in sky-high labor/material costs and I think we have some issues to mull. |
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Therefore, I vote for overwater commercial WIG routes in the near term. Notably, these can go where railways virtually -can't-, and need not even be oversea -- think Toledo-Buffalo, Kampala-Mwanza, or Baku-Astrakhan, among inland possibilities. Perhaps even some lower rivers would be navigable. |
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Overall, of course, lots of seaports in particular could benefit from such flights, if safety could be well-maintained and traffic and noise controlled effectively. |
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//How do you get ground effect at high altitude?// |
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It takes 3 planes to do it. Position the right wing of the plane on the left under the left wing of the plane in the center, and position the left wing of the plane on the right under the right wing of the plane in the center. |
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Ground effect at altitude. - No less dangerous than skimming the ground. |
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How about using some kind of hybrid system that can actually "land" the craft on Unabubba's maglev rails and slide into a train station? If they shut Amtrak down, you could possibly use existing (as well as abandoned) rail right-of-ways. I also suspect WIG that can carry a fair number of passengers are already floating around somewhere nearby... For that matter, you might be able to use active rail routes depending on the definition of WIG. |
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If you look at [FarmerJohn]'s second link and select "What is a WIG?"->"Conceptual design" and go to the bottom there's a description of proposed highspeed train using WIG instead of maglev. It doesn't use plain water or roads but troughs. I suppose this gets rid of the windshear problem. But I wonder how the points work. |
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sounds nice, but commercial airliners fly much faster than 300 kph, and the wake vortices that these things leave behind would play havoc with auto traffic. All that, and not to mention noise concerns. On the positive side, for overwater routes, Boeing is developing a super-sized transport called the "Pelican". (see link) |
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Hmmm, there goes my mast. |
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Good links FJ. I imagine this would look awesome, especially lying on your back on the W-Way as the 3:30 from Miami to Dallas flew over. |
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If you didn't want people to do this btw, you'd have a hell of a fencing job on your hands. |
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The problem with Ekranoplans/Wing in ground effect vehicles is fairly fundamental... they're going to be unsafe. Even if the rate of mechanical failure/pilot error is exactly the same as conventional aircraft, the results are going to be horrible. Pilots spend an awful lot of simulator time practising things going wrong at the worst time i.e. shortly after take off, on final approach etc. This is because these are the parts of the flight regime where there is minimal time to react. The ekranoplan spends its ENTIRE time in the most dangerous position, just above the ground/water. |
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That's all right; we just dig a colossal canyon under the flight path, line it with soft sponge, half-fill it with fire-retardant foam, cover it with a thin layer of cellophane, and let that provide the ground effect. |
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In this exceptional case, not custard. |
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//Why NOT custard?// Because custard flows under low stress and becomes hard under high stress. See "custard filled speed bumps". We want the opposite properties, of being rock solid at low stress e.g. for the sheep to tumble about on, but to become like cotton wool or fluffy down on impact e.g. when the wing is in the ground. |
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