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General control line discussion => Open Forum => Topic started by: elizio on April 16, 2008, 08:04:16 PM
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My Ringmaster.
Engine OS 26 4T.
Brazilian Catho Team.
Preparatory a Brodak Fly-in 2008.
elizio
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Guys, please a information:
the wing is very flexible. It's a trouble in original project?
Thanks
elizio
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The basic design doesn't join strongly in the center, and needs a stiff covering, such as doped silkspan (or silk). Film coverings allow it to flex enough that after a time, the outboard wing breaks away in flight.
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I've seen a Kevlar line (string) run top and bottom from the inboard leading edge to the outboard trailing edge. This appeared to add some stiffness. A friend used an unsightly monokoted Ringmaster year after year at Brodak. He came in 2nd or 3rd in OT Expert more than once. Flexifier Ringmasters are the norm. You can run the Kevlar string on the outside of the wing. It's black. Shame to interfere with the neat finish. But since your designs are black (at least they look that way in the photograph) the thin black Kevlar lines might look o.k. Try flying the plane as is. Might work great. The OT pattern isn't that demanding on an aircraft. In some ways it's simpler than the Beginner PAMPA sequence. For one thing most figures are made larger. Skyrays flex their wings plenty, they're real flappers. Some insist they make decent stunt planes. As far as adding the Kevlar I doubt anyone would worry about that at the Brodak love fest. Elsewhere... Dunno.
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A shot with a light day.
elizio
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The basic (original S-1) design doesn't join strongly in the center, and needs a stiff covering, such as doped silkspan (or silk). Film coverings allow it to flex enough that after a time, the outboard wing breaks away in flight.
One thing I omitted mention of, it's so basic that all the old-timers know it, both silkspan and silk have a "grain" that should run parallel to the wing's span for best strength. For silk, it's in the "long" direction, with the selvage edges, while the paper has no similar giveaway. You must attempt a tear near a corner. The direction it tears neatly & straightly in is the grain's direction.
My mentor was never a big fan of Ringmasters, though he claimed to have built a half dozen Circus Kings, which were clones (also Matt Kania) of the Ring, just better looking in his eyes. He'd say something like he'd never seen a Streak shed an out board wing on its own, compared to having seen a dozen Rings do just that.
When I began building my own S-1, he suggested gussets at various critical corners, such as from the center rib to the TE, and center rib to LE, plus twin gussets from the second outboard rib (end of center sheeting) to LE/TE, and/or adding curved segments to the sheeting that functions as gussets, although on the outside of the structure. None of that keeps the wing from flapping if the center joins aren't good, or if the covering is flexible, but they keep the outboard wing from hinging on the LE's joint in a rough landing.
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Thanks at alls!
Obrigado.
elizio - Brasil
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Elizio, I think your plane is absolutely beautiful, i really like the personnal touches!! I hope it flies well for you!! Ray in North Carolina
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Thanks at alls!
Obrigado.
elizio - Brasil
They don't handle wind gust very well! Its the outboard wing. It needs additional support to prevent this...
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UAU!
Not is possible!
In the competition end, the champion is the Ring intact.
Good shots!
Thanks
elizio - Brasil
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At last VSC the boys from Brazil had some nice looking airplanes. Then again ole USA have some great ships to !! VSC is not an event its a happening !! Its the original Woodstock for UC vintage and classic ships. Down side this is good ole boys event. Anyway most come to enjoy and meet old friends or make new ones. Many fine folks out there.
cheers,Dan
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Hi guys:
I need a Ringmaster plan archive, for confrontation.
Thanks for help.
elizio
elizio@terra.com.br
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Who produces the Golden Age Series?
Phil
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Dear Phil:
the denomination Golden series it's in my mind only.
Black and gold paint...
This kit was manufactured by Bene Rodrigues, São Paulo, especific to Brodak event.
In Brodak Fly-in, I'm sure, Super Tucanos and Ringmasters, to form a true "Flying Circus" with the blending of colours.
Have a Super Tucano various: brazilian "Smoke Scuadron", brazilian Air Force, RAF, trainer, etc...
Thanks for your interest.
elizio
Included shot of Tucano (by Raul)
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In all my years of flying I have never seen a "Ringmaster" come apart while flying. Now when they came in contact with mother Earth in a violent way that was another story. I am still flying one that is Monokoted. That Tucano is one good looking plane. DOC Holliday
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SUPER TUCANO (Elizio) - Saito 72
TUCANO (Juarez) - OS 70
elizio
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In all my years of flying I have never seen a "Ringmaster" come apart while flying. Now when they came in contact with mother Earth in a violent way that was another story. I am still flying one that is Monokoted. That Tucano is one good looking plane. DOC Holliday
Doc,
Half a dozen or so shed the outboard wing in flight at the 2008 Brotherhood of the Ring Roundup at Houston this month. Build them LIGHT and get even lighter when the outboard wing comes off. LOL
Mine was re-kitted in a figure 9 when it was caught in the wind and I lost line tension.
John Cralley
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In all my years of flying I have never seen a "Ringmaster" come apart while flying. Now when they came in contact with mother Earth in a violent way that was another story. I am still flying one that is Monokoted. That Tucano is one good looking plane. DOC Holliday
Beginning from about 1951, when I first saw an S-1 flying, through now, the total count of outboard wings lost in the air from that design while I was a witness (or, on a couple of occasions or more, a pilot, although not flying my own planes when that happened) probably is on the order of two dozen, perhaps three. They fly rather poorly on only the inboard wing, incidentally.
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São Paulo - Brazil
Parque do Ibirapuera - 26 abril 2008
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Hi Elizio - Try this tee brace to get a ringmaster to hang together. See you in June. Tom H.
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The Sterling Ringmaster, with convencional wing construction, it's to consent fly in Old Time, Profile and Classic?
Thanks for help.
elizio
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n~
Ibirapuera - São Paulo - Brazil
Brazilian CATHO team.
elizio
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Hi Elizio - Yes, you have an S-1 Ringmaster, legal in old time, classic and profile. There is a later version, the S-1A, with the wing planked back to the high point, which is not legal for either old time or classic. Not to worry, we'll round up enough loaner airplanes to cover everybody. Tom H.
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Hi Tom:
I need to build a new Ringmaster wing.
I have a Sterling plan, with the construction below.
It's to permite?
Thanks;
elizio
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It took me a bit to translate "permite", and the answer is no, the S1A wing looked somewhat like your sketch does, although with a 3/8" square LE included, and it's a better flying version, but too new for either Classic or OTS events in the US. The S-1 has a single spar, but the internal structure has no bearing on the qualifications, so that if the superior construction with multiple spars was redesigned to keep the spars away from the covering (and the LE sheeting eliminated), and duplicate the S-1's own airfoil, the plane would fly the same, while less likely to start wing-flapping when covered with a film product.