Ultra-Fly (oz5086)
About this Plan
Graupner Ultrafly (Ultra Fly). Radio control 2.3m electric sailplane model. Graupner kit # 4257.
Direct submission to Outerzone.
Update 28/12/2014: Added 2nd sheet, showing varioprop electric motor and RC installation, thanks to DriesNeyrinck.
Supplementary file notes
Sheet 2.
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User comments
i am just starting and it would be nice to have the build instructions if there is any.jmccoulrc1 - 20/03/2017
Hallo Mary, hallo Steve, the restoration is finished. I think the Ultra Fly is more than 30 years old. Last Saturday was the first flight [more pics 003-005]. The model flies very well.
BernhardDittmann - 10/07/2017
Hello, I am new to aeromodelling. Can you tell me where I can find the assembly instructions. Thanks for your help
Jean-Pierre - 19/11/2021
This wouldn't be ideal for a beginner - it could be better if you started from a kit with all the necessary plans, parts and instructions.
However, if you want to learn from plans, a simpler design would be better and also read this book to get a better understanding of techniques (and the tools and equipment you will need
https://rclibrary.co.uk/title_details.asp?ID=1997
Daithi - 21/11/2021
Hello Pierre, the Ultra Fly ist a very good model. It flies fine. Building from a kit is possible. But building the free flying elevater may cause problems. If you want to built a wooden glider from a plan, better try "Blue Phoenix", that is much easier and more stable! If it flies successfully you can try the "Ultra Fly" https://youtu.be/4OgVqD0p-hk you can see my "Ebay-Ultra Fly" flying...
Geetings from Germany
Reinhard Lehmann - 22/11/2021
Hello Mary, hello Steve, I am sending you another picture [pic 006] and a link to a short video clip of my Graupner Ultra-Fly: https://www.youtube.com/watch?v=2bIY2SmZo5w
Best regards,
Bernhard Dittmann - 23/06/2024
Hello sir. I am restoring a Graupner ULTRAFLY glider with my son. I don't understand how the wings are attached to each other. I also don't know how the elevator fins are connected to each other. Should they be glued to the connecting rods? Is there a solution to keep them removable? This makes transportation easier. Thank you if you can help us. Florian Apologies for the quality of the French/German translation
Florian CARPENTIER - 25/12/2024
Florian, it looks like the standard steel rod inside a brass tube arrangement. The tubes are epoxied between the upper and lower spars. All sandwiched with some good birch ply joiners. The steel joiner is left straight so the tubes are glued in at the proper angle for the dihedral. The dowel in front is just to insure the panels stay aligned. Strapping the wing onto the fuse will be plenty to keep the wing halves together.
The stabilizer just slides onto the steel rods, however I have seen plans call for some sort of set screws to retain them. I have a Sagitta 900 and the friction is enough to keep them on. A little bit of careful bending may be all it takes. You could fasten the rods on one side and just use a single set screw on the other, should be plenty.
Dave - 27/12/2024
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- Ultra-Fly (oz5086)
- Plan File Filesize: 1058KB Filename: Ultra-Fly_Graupner_92in_oz5086.pdf
- Supplement Filesize: 1589KB Filename: Ultra-Fly_Graupner_92in_oz5086_sheet_2.pdf
- help with downloads
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