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inventing_man
01-20-2007, 06:00 PM
Greetings from the Ozarks of Missouri . Well done site here at Wattflyer. I would like to prompt Admin to include a new forum for
EXPERIMENTAL
projects like the one I have posted here. With the new generation electronics avab today with relitive inexpensive costs, it open the door for new ideas. Thank you for considering this request.
Experimental Idea;
Electric Custer Wing design In VTOL. There are many ducted prop or ducted fan jobs out there . None using Custer Channels . And less than none that are wingless, with 4 motors / half ducts, and is on a disk shaped airframe. As my attempt at VTOL with a totally different approach using natural lift stability as seen as inherent to the Custer Chanel. Against the electronic induced stability of other VTOLs. I don't know if this realm of the Custer Chanel has been explored in this way. I have found no info to support any work in strictly the VTOL aspects of the Custer Chanel .
The Chanel lift is not the prime lifting force. Instead it should be a very Stabilizing lifting force and always present no matter the attitude of the exhaust vectoring. The air flow will " in theory " provide 2 forms of lift.. Airfoil lift from air ingested into the half duct. And exhaust vectoring lift. As yet I have not seen any prop or ducted anything, that provides 2 forms of lift... in a stationary position
....from one device
http://photos21.flickr.com/25076860_d3ffa9497a_m.jpg

This is the Custer Wing Half duct This ducting system does provide lift from a stationary position. This aircraft was tied so that it remained stationary and the half duct did lift it
http://static.rcgroups.com/forums/attachments/7/7/4/8/9/t1127348-31-thumb-ccw-1_hovering.jpg
This is a crude cut & paste sketch of the ducts with wash vectoring using a flexible duct that will rotate 90 degrees up and down. Or a telescoping 90 degree elbow if you will. The actual piece is only a few spirals long so the plastic membrane is tight and wont restrict air flow. There will be 4 of these units mounted equal distance apart on a disk . 3 will work together, One will be independent to maybe provide direction in hover.

What I don't know is what the actual Airfoil surface shape is inside the half duct , or What shape airfoil I should use inside the half duct for this electric project . But I Will first try the Clark Y airfoil, Then a special high lift slow speed type. http://www.ae.uiuc.edu/m-selig/ads/c...atabase.html#C (http://www.ae.uiuc.edu/m-selig/ads/coord_database.html#C)
Any ideas are welcome Also if you want to try this project yourself , feel welcome to do so and post your findings here. Even if you want to just build the plane instead of the Disk, Let us know about it!
Attached Thumbnailshttp://www.wattflyer.com/forums/attachment.php?attachmentid=22391&stc=1&thumb=1&d=1169315960 (http://www.wattflyer.com/forums/attachment.php?attachmentid=22391&d=1169315960)

stevecooper
01-21-2007, 02:31 AM
a no-ribbed flex pipe will help as theres a lot of turbulance in that rig, lots of stuff go'in on pipe'in and duct-work biz these days, anyhoo, I like your style, it's good to see folks like yourself out there giv'in the rest of us some new ideas and other ways of look'in at our hobby, thanks, your bub, steve

inventing_man
01-21-2007, 03:02 AM
Thanks Steve. That flex duct shown was the best pic I could find on the net of one bent at a 90 degree just to get a basic idea across. . The actual piece is only a few spirals long which makes for a light weight, tight plastic membrane for the most part. A U shaped servo controled bracket on the exhaust end of the flex duct with the ends of the U's pivoting on the airframe is what I have in mind.

inventing_man
01-21-2007, 05:58 PM
Here is a good site About the Custer wing. http://www.angelfire.com/va3/bythefire/index.html

stevecooper
01-22-2007, 01:08 AM
sounds good!!!your bub steve

Mike Parsons
01-23-2007, 07:50 PM
Ill look into it. If there is enough information to support a seperate forum I am all for it.