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#1 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Al's Cyclogyro The 'Baco-Liner' Mk.II *2nd Video Up*
Hi Guys,
Things are steady here, with only the occaisional touch on the rudder to keep us on a true course, all current projects are being attended to. But what of the future?? Well here's one I've been looking at for a long time, The Cyclogyro of the 1930's, around the same time that Autogyros really lifted off. http://www.dself.dsl.pipex.com/MUSEU.../cyclogyro.htm and other info, http://www.flightglobal.com/pdfarchi...0-%200958.html look in the left margin for pages you want to view, double click and you get the reloaded full size. I plan to start this build by the end of the year, God willing. My ideas are taken from a variety of sources, I thank you gentlemen, " For those that went before in the dark and lit the way, that I may follow. A typical " What if ? " Inter-City Airtransporter of the past, in the colours of Zandair, a mythical Scottish island hopper service based in Skye, the Highlands. I'll be using the usual suspect materials but including CD discs, clear plastic film, Depron and balsa, should be fun. here is my basic start sketch and some other good gen for you, my version has only airflow driving the rotors. Cheers, Regards to all, Al
Last edited by rotorheid; Yesterday at 12:54 PM. Reason: Pun ctuation. |
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#2 |
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Registered User
Join Date: Nov 2008
Location: DeRidder LA.
Posts: 874
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What the
? I'm very certain you'll make an interesting and entertaining project out of whatever that thing is Al. I'll be looking forward to the maiden.-Mike |
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#3 |
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Suck it and see
Join Date: Aug 2008
Location: Cromer, North Norfolk Coast, UK
Posts: 378
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You never cease to amaze Al. Good luck with the build, and if it never leaves the ground, you can use it as a combined harvester.
Regards John |
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#4 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Zandair's "Baco-liner" takes shape.
Hi John, Guys,
"Good luck with the build, and if it never leaves the ground, you can use it as a combined harvester. " Oh it will leave the ground alright, even if I have to strap it to a huge rocket! Combined harvester, yes I was going to call it the 'Threasher' but it's now the 'Baco-Liner' , named for an Argentinian modeler of the same name, Snr Baco, and not the cooking foil made of aluuuminniiuuum. Here's a link to some of his work with Aydlett Rotors. He was in turn inspired by the late Roy L Clough Jr. and his work with Flettner rotors. http://www.rcuniverse.com/forum/m_42..._1/key_/tm.htm Some cool video links there too. Here are the progress pics to date, I hope to have a test Flight before I leave for my next home time on 21st. Oct, so onwards and upwards? Cheers, regards to all, Al
Last edited by rotorheid; Oct 17, 2009 at 12:52 AM. |
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#5 | ||
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Registered User
Join Date: Sep 2004
Location: Omaha Millard, Nebraska, United States
Posts: 1,394
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Al,
I'm facinated by this project. I never seen one fly till I started to do some youtube searching and found this:
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#6 | ||
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Registered User
Join Date: Sep 2004
Location: Omaha Millard, Nebraska, United States
Posts: 1,394
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There's also this...called the fanwing. Sort of the same concept but looks like it's more stable.
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#7 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Hi Joe,
Thanks for the links, not seen those before, just the ones from Argentina, Cheers, regards Al |
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#8 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Wheels and motor fitting.
Hi Guys,
A bit more to show, nothing special, just the motor mount with trial fit and the main wheels, I'm not too happy with them in the moment so may change the angle, too much toe in, a couple of happy snaps for you. Cheers, regards to all, Al
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#9 |
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Registered User
Join Date: Nov 2008
Location: DeRidder LA.
Posts: 874
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Hi Al,
I'm completely ignorant to these types of aircraft. Is there any distinctive flight handling characteristic of these type aircraft? Is there an advantage over a standard fixed wing? Do they have capabilities that are better than either fixed wing, or autogyro? I suspect this type aircraft is a case of why did the chicken cross the road. In any event your build is already looking great! I don't know how you build so quickly, but keep it up.Regards, -Mike |
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#10 |
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Registered User
Join Date: Jan 2002
Location: Seaford, DE
Posts: 724
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Magnus Rotor
Sometime around 1980-1982 RC Modeler Magazine has an article about a engineering student who was doing a project involving rotor planes. He called the aero phenomenom the "Magnus Rotor Effect". He first built a glider with rotating wings that I think he dropped from a mother plane. The wings rotated about the spar tube, and had anti-rotation pins hooked to a servo. He started out gliding normally, and then pulled the pins. He also built a powered one, but I don't remember if it flew.
If you cut a strip of postcard paper (for example 1/2" wide x 6" long), and drop it from a horizontal position with a little backspin, it will autorotate nicely in a steep glide path. If you take a 12" wooden ruler and throw it overhand horizontally with a wicked backspin like a baseball, it will climb out and go quite far. Dan |
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#11 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Aydlett, Flettner, Magnus, Tumble wing, Fan Wing et al.
Hi Don,
Thanks for that information on the 'Magnus Effect, there are so many pieces to the puzzle sometimes. Just been beefing up the head supports, now it holds the carbon spar with just enough tightness to reduce flex at the tips. I will make the two rotors next, these will be the hardest part of the build, all unknown areas, "Here be dragons" or "Gentlemen, we are now off map." Must press on, Cheers, Regards Al,
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#12 |
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Tannenzäpfle-Terminator
Join Date: Dec 2008
Location: Baden-Baden, Germany
Posts: 396
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Hello...........
Al, You never stop to find amazing new ways to have some happy autorotation. Go on, I am very curious about the first tests! BTW, as the question why there are no real-size aircrafts using this principles popped up, I remember the FLETTNER-rotor, which is very similar......... FLETTNER had the idea of using a vertical cylinder rotating around itself as a sail for a boat. He has build a small model, prooved that it worked, and then he has build a real-size ship. The tests have been very encouraging, and the idea pops up from time to time again. But now to the problems-side-of-view: Imagine a ship, 30 meters long, two cylinders of 3 meters diameter, mounted on the deck like a mast, 20 meters high, revolving with 500 RPM. Imagine the bearing-loads, the problems of stress and vibration and then You know why. The FLETTNER-rotors will work on a small RC-model. The things get smaller, the stress is reduced, and if the bearings run only 100 hours, You are satisfied. Perhaps this is the only solution of getting an aircraft airborn that works better on scale models than for the real-sized ones. Bye Mike |
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#13 |
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This is my other autogyro!
Join Date: May 2006
Location: Live in Inverness, Scotland, work away.
Posts: 1,784
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Hi Mike, Guys,
Yes I'm hoping that we are within the critical size for this to work. Build is progressing, 1/2 the Rotor System is done, I could advertise on the revolving blade like those old garage forecourt sign's, " Eat at Joe's, or Drink Beer" It span up very well in a zypher of wind. Some pics to ponder, more laters, Cheers, Regards to all, Al
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#14 |
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Viva Juan De La Cierva
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Totally cool Al!!! I enjoy so much, when I see you are on to a new project. I really like the Cabin of this aircraft. Bang up job so far. Looking forward to the progress.
Do you sleep and eat at some point??? Dave |
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#15 |
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Registered User
Join Date: Jan 2002
Location: Seaford, DE
Posts: 724
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A NASA paper on calculating lift of a rotating cylinder:
http://www.grc.nasa.gov/WWW/K-12/airplane/cyl.html An article on rotor ships: http://en.wikipedia.org/wiki/Rotor_ship This is a bomb that rotates and glides, exactly like I described cutting a piece of card paper and dropping it: http://en.wikipedia.org/wiki/Flettner_rotor_bomblet Dan |
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