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Interesting Toy
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Arnie M. wrote: . Norm (or anybody) I could dig up my old engineering PDF links and articles on WIG if you want. Some of it is very technical but good for a designer . Some magazine articles are informative too A designer from Finland teamed up with a designer in Germany years ago and began "perfecting" WIG .... around 1989 some prototypes were going thru trials in Florida and then Bill Russel in Connecticut purchased licensing rights and started experimenting ... it was one of his models that went airborne and splat ... he made some unauthorized "improvements" which violated his contracts and I think he quit. Now Australia is having some success reviving it (Opening post) . All these models are birthed from the original 1980's design under various names . The craft is good , the issue has always been keeping it flying in the sweet spot between the water and sky. Let me know and I can look them up and post the links. I would love to read them Arnie if you could upload those into the educational area I would appreciate it a lot. I read everything  _________________  A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense. |
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| Sat Oct 24, 2015 7:10 am |
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Gabor wrote: Arnie M. wrote: . Norm (or anybody) I could dig up my old engineering PDF links and articles on WIG if you want. Some of it is very technical but good for a designer . Some magazine articles are informative too A designer from Finland teamed up with a designer in Germany years ago and began "perfecting" WIG .... around 1989 some prototypes were going thru trials in Florida and then Bill Russel in Connecticut purchased licensing rights and started experimenting ... it was one of his models that went airborne and splat ... he made some unauthorized "improvements" which violated his contracts and I think he quit. Now Australia is having some success reviving it (Opening post) . All these models are birthed from the original 1980's design under various names . The craft is good , the issue has always been keeping it flying in the sweet spot between the water and sky. Let me know and I can look them up and post the links. I would love to read them Arnie if you could upload those into the educational area I would appreciate it a lot. I read everything Sure will Gabor , I will do it over the weekend . I will post them here and in the educational area too One file is very good , it explores ground effect right from scratch on just about everything .... cars , elevated magnetic trains and wings of course .... right from a piece of plywood to the most desirable airfoil shape ... even explains how ducks use feet and ground effect to lift off water. Mostly what I have to dig up is my index for the pages we are interested in , that way nobody has to read the whole thing |
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| Sat Oct 24, 2015 7:37 am |
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Site Admin  Joined: Tue Sep 02, 2014 7:45 am Posts: 10129 Location: Poona, Qld, OZZY Has thanked: 21874 times Been thanked: 6221 times
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Gabor wrote: I read everything Yeah, Playboy..... Penthouse..... Cavalier..... Woman's day.... TV week      _________________ I do all of my own stunts..... most of them are even planned! Ok, Ok.... some of them are planned.. If electricity comes from ELECTRONS, then surely morality comes from MORONS?? |
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| Sat Oct 24, 2015 11:39 am |
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Joined: Wed Dec 04, 2013 10:18 pm Posts: 420 Location: Gilboa, OH Has thanked: 784 times Been thanked: 330 times
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MadMuz wrote: RotoPlane wrote: I like a hovercraft with wings and two fans; one fan for forward thrust and one fan for downward lifting thrust, for when the wing isn't going fast enough to lift. I would want a deeper skirt than this one has though..... Quote: I think a deeper skirt would cause too much drag? Maybe a retractable skirt? Yes, a retractable skirt. While touching any surface, the pressure will build and cause the skirt to stretch longer and raise the craft. Climbing away from a surface drops the pressure and causes the skirt to retract. A deeper skirt is required for moving slowly across rough and/or sloped ground. _________________ Ed Rosenberger |
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| Sat Oct 24, 2015 12:54 pm |
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MadMuz wrote: Gabor wrote: I read everything Yeah, Playboy..... Penthouse..... Cavalier..... Woman's day.... TV week Phone book dude phone book!  _________________ A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense. |
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| Sat Oct 24, 2015 10:05 pm |
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Site Admin Joined: Tue Sep 02, 2014 7:45 am Posts: 10129 Location: Poona, Qld, OZZY Has thanked: 21874 times Been thanked: 6221 times
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Gabor wrote: Phone book dude phone book! Oh, and evidently I forgot.... the phone book    _________________ I do all of my own stunts..... most of them are even planned! Ok, Ok.... some of them are planned.. If electricity comes from ELECTRONS, then surely morality comes from MORONS?? |
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| Sun Oct 25, 2015 3:14 am |
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Site Admin Joined: Tue Sep 02, 2014 7:45 am Posts: 10129 Location: Poona, Qld, OZZY Has thanked: 21874 times Been thanked: 6221 times
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Arnie M. wrote: . The same problems can plague race boats as well A tunnel boat is also a ground effects machine , only the propeller is in the water and the boat itself is 12" off the surface. They sometimes go airborne too . A slight amount of porpoising .... catch a little too much air , and up she goes Yeah... the sprint jet boats have issues too, but it is normally the ground rather than the water that sends them flying   Edit: So they are 'ground effected' rather than in 'ground effect' so, in other words they are exactly the same, only slightly completely different _________________ I do all of my own stunts..... most of them are even planned! Ok, Ok.... some of them are planned.. If electricity comes from ELECTRONS, then surely morality comes from MORONS?? |
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| Sun Oct 25, 2015 5:55 am |
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I found my saved magazine articles and engineering PDF's on my old computer and listed the links here viewtopic.php?f=2&t=3239&p=40852#p40852 . |
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| Sun Oct 25, 2015 5:18 pm |
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(From the article) Ground effect is said to be the most efficient form of flight and is a technology that has been waiting to be exploited.
Ground effect vehicles have actually been with us for a while, the idea being exploited to lift sea borne vehicles off the surface of the sea to minimize drag, while at the same time flying close to the ground such that the efficiency that flying in ground effect provides can be exploited. Examples of these are X-112 built by Dr. Alexander Lippisch for Collins, and the huge Soviet built Ekranoplans during the Cold War for military use. Commercially however, exploitation has taken a long time in coming. Flying close to the sea surface, there was for a long time a reluctance by legislators uncertain about which civil authority to govern the design, construction and operation of such craft, to determine if it should be seen as a boat of a plane. Why not, one may ask, fly a plane then in Ground Effect? The answer lies in the fact that planes, designed to operate in free flight, are unstable when in ground effect and pilots are trained to counter the effects by having to actively control the plane during take-off and landing. A purpose built Ground Effect vehicle on the other hand can be designed such that it is stable in ground effect without the need for active control. A feature of WIG craft is the large horizontal tail that is provided for this purpose. https://thelongnwindingroad.wordpress.c ... airfish-8/ |
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| Sun Oct 25, 2015 5:23 pm |
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Thank you Arnie
 _________________ A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense. |
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| Sun Oct 25, 2015 5:39 pm |
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_________________ A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense. |
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| Mon Oct 26, 2015 6:44 pm |
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Gabor- By the looks of your recent picture for your avatar....I think I could whoop your ass now! Better start eating your steak and eggs!
Wait...Ovomits puppets say red meat is bad for you. |
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| Mon Oct 26, 2015 7:02 pm |
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