blakep82
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 posted on 14/10/08 at 05:40 PM |
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mmm caspian sea monster
anyone know how ground effect works on these? want a locost one ha ha ha
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donut
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| posted on 14/10/08 at 05:41 PM |
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Big bugger innit!!
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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scotlad
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| posted on 14/10/08 at 05:58 PM |
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OO is that an ekranoplan? I saw a program about their development on sky a while back. Wouldn't like to be in a small yacht when one of those
came bearing down at 300/400 kmh!!!!
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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blakep82
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| posted on 14/10/08 at 06:02 PM |
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^ sure is
i'd love a small one
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NigeEss
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| posted on 14/10/08 at 06:06 PM |
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When a wing is flown very close to the ground, wingtip vortices are unable to form effectively
due to the obstruction of the ground. The result is lower induced drag, which increases the
speed and lift of the aircraft while it is experiencing the ground effect.
Wikipedia and Google are your friends
[Edited on 14/10/08 by NigeEss]
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britishtrident
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| posted on 14/10/08 at 06:09 PM |
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istr Ground effect works by blocking the vortices generated by the wing, Fred Lanchester with confirmation by Prandtl came up with the votex theory
of how wngs work. Thre first guy known to have made use of ground effect was Lindberg .
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tegwin
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| posted on 14/10/08 at 06:09 PM |
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quote:
Originally posted by blakep82
^ sure is
i'd love a small one
Your wish, is my command!
http://www.hovercraft.com/content/index.php?main_page=index&cPath=34_53
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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blakep82
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| posted on 14/10/08 at 06:18 PM |
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^ Brilliant!
i wonder whats involved in making some kind of ferry service lol was on a ferry which took an hour to go about 10 miles the other day. was a nice
enough trip, but a caspian sea monster would have made it sooooo much more fun lol
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JonBowden
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| posted on 14/10/08 at 06:38 PM |
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I've been thinking about these things ever since James May's program.
I think that a locost one is definitely on the cards.
A good start would be to build some remote control test models. Then a Scrapheap challenge full scale test before designing the real thing.
The only thing that worries me is the thought that sooner or later, you're going to hit the water at 100 mph.
The waters on the west coast of scotland would make an ideal playground.
Jon
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blakep82
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| posted on 14/10/08 at 06:41 PM |
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definitely! you see ow smooth the water was today? go a bit further out towards arran, and you get some perfect open water. i wonder though, would it
classed as a plane in the UK and therefore need some kind of pilot license
perhaps even a cheaper, more novel alternative to the sea plane that goes up north?
[Edited on 14/10/08 by blakep82]
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Peteff
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| posted on 14/10/08 at 07:05 PM |
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What about the beaurocracy bit?
If it leaves the ground you need a pilot's license to fly it don't you?
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Werner Van Loock
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| posted on 14/10/08 at 07:44 PM |
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quote:
Originally posted by scotlad
OO is that an ekranoplan? I saw a program about their development on sky a while back. Wouldn't like to be in a small yacht when one of those
came bearing down at 300/400 kmh!!!!
The one pictured did 800kph  , it was the later smaller brother (A90) that did 400kph
http://www.clubstylus.be
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jimmyjoebob
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| posted on 14/10/08 at 07:56 PM |
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It needs to fly within half its wingspan for ground effect. The bigger the better!
With the loss of concorde this would be a much more cost effective, albeit slower, alternative for the atlantic crossing.
I always get the feeling that the Ekranoplan has been shunned by the Americans because the Russians were the world leaders in the technology. They
seem to freely copy everyone elses technology without conscience!
If at first you don't succeed, hide all evidence you ever tried!
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JoelP
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| posted on 14/10/08 at 08:38 PM |
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i assume you've all seen the ekranoplan on google earth in the caspian/black sea dock?! Bit of a bugger to find without the lat longs but i
remember the coast outline so can probably find it again!
42 52 54.73N
47 39 24.09E
[Edited on 14/10/08 by JoelP]
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tegwin
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| posted on 14/10/08 at 08:54 PM |
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You dont need a liscense to fly a hovercraft...so in theory a WIG (wing in ground effect) hovercraft would be nothing different...
I have built 2 hovercraft....not difficult to build...but deffinately difficult to drive!
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www.verticalhorizonsmedia.tv
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JonBowden
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| posted on 14/10/08 at 10:36 PM |
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According to Wikipedia, these are classed as boats
http://en.wikipedia.org/wiki/Ekranoplan#Classification
I have scheduled the design and construction of one of these just after I finish my seven. At my current rate of turning dreams into reality,
that's a long time from now.
I really do want to build one, so if in ten years you see one of these comming accross the water from Helensburgh to Greenock, It might be me.
Jon
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JonBowden
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| posted on 14/10/08 at 10:39 PM |
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I looked at some of the videos of winged hovercraft at hovercraft.com. The didn't look too stable.
The aircraft like designs seem much better
Jon
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blakep82
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| posted on 14/10/08 at 11:07 PM |
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i really want to build one too! race ya!
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blakep82
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| posted on 14/10/08 at 11:07 PM |
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actually, perhaps building something like that isn't best rushed....
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designer
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| posted on 15/10/08 at 07:08 AM |
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Somebody in Florida (I think) produces a small 'weekend' version.
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