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General control line discussion => Open Forum => Topic started by: Lee Thiel on February 08, 2008, 07:17:57 PM
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Here is a shot of Bob Reeves "576" not quite a ringmaster. Plus a couple of cool pics just before our meeting last evening.
Lee TGD
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Nice shots, and that's a good looking Ring-a-ma-thing.
Steve
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Bob did a nice job on his. (nice pictures, too!)
The Ringmaster 576 borrows off the European (Beringer) style of airfoil/flaps set up. An absolutely GREAT profile with a LA 46. (or 4S like Bob used) It is one of those profiles that will fly with about anything.
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The following is what Dee Rice sent me in an email.. Am sure he doesn't mind me broadcasting it..
The 576/526 story began last year when I called my friend and noted model designer, Pat Johnston, and told him that I wanted a close to scale Ringmaster in the upper 500 square inch range. I wanted it with a modern airfoil, flaps, and other modifications that would give it the best possible flying characteristics so it would be capable of flying with modern expert level ships. I envisioned an airplane with small flaps, powerful airfoil and a large tail-volume-coefficient. My hope was that even with the shorter tail moment, we could make it aerodynamically similar to the French Berringer inspired stunt ships. I know, I know, that was a big hope.
Pat and I brain stormed for awhile and 10 days later I receive the first set of Ringmaster 576 plans in the mail and it looked great. We talked again and made a few more structural and aerodynamic changes.
With a powerful lifting airfoil and inherent light weight, we knew the small flaps would be just right. Also, due to the relatively large area of the original stab/elevator of the S-1, the exact scaled up areas of the stab/elevator with only an inch longer aft fuselage; we were able to get the tail leverage (tail-volume-coefficient) in the range we wanted.
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I got a few shots when Joe took the streak up for a spin. Not a lot of light to work with, but it gave the shot sort of an Andy Warhol type of effect. It would have looked better without the dark colored patch near the wing center section.
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The following is what Dee Rice sent me in an email.. Am sure he doesn't mind me broadcasting it..
The 576/526 story began last year when I called my friend and noted model designer, Pat Johnston, and told him that I wanted a close to scale Ringmaster in the upper 500 square inch range. I wanted it with a modern airfoil, flaps, and other modifications that would give it the best possible flying characteristics so it would be capable of flying with modern expert level ships. I envisioned an airplane with small flaps, powerful airfoil and a large tail-volume-coefficient. My hope was that even with the shorter tail moment, we could make it aerodynamically similar to the French Berringer inspired stunt ships. I know, I know, that was a big hope.
Pat and I brain stormed for awhile and 10 days later I receive the first set of Ringmaster 576 plans in the mail and it looked great. We talked again and made a few more structural and aerodynamic changes.
With a powerful lifting airfoil and inherent light weight, we knew the small flaps would be just right. Also, due to the relatively large area of the original stab/elevator of the S-1, the exact scaled up areas of the stab/elevator with only an inch longer aft fuselage; we were able to get the tail leverage (tail-volume-coefficient) in the range we wanted.
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The following is what Dee Rice sent me in an email.. Am sure he doesn't mind me broadcasting it..
The 576/526 story began last year when I called my friend and noted model designer, Pat Johnston, and told him that I wanted a close to scale Ringmaster in the upper 500 square inch range. I wanted it with a modern airfoil, flaps, and other modifications that would give it the best possible flying characteristics so it would be capable of flying with modern expert level ships. I envisioned an airplane with small flaps, powerful airfoil and a large tail-volume-coefficient. My hope was that even with the shorter tail moment, we could make it aerodynamically similar to the French Berringer inspired stunt ships. I know, I know, that was a big hope.
Pat and I brain stormed for awhile and 10 days later I receive the first set of Ringmaster 576 plans in the mail and it looked great. We talked again and made a few more structural and aerodynamic changes.
With a powerful lifting airfoil and inherent light weight, we knew the small flaps would be just right. Also, due to the relatively large area of the original stab/elevator of the S-1, the exact scaled up areas of the stab/elevator with only an inch longer aft fuselage; we were able to get the tail leverage (tail-volume-coefficient) in the range we wanted.
So Bob, is your 576 as per PJ's plan or did you mod it ? How cool is that, your AMA #..
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Allen his and mine built to plans mine LA 46 Bobs Saito 40
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Are plans for the Ringmaster 576 currently available from someone?
Randy Cuberly
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Are plans for the Ringmaster 576 currently available from someone?
Randy Cuberly
Pat Johnston