Beta Magic (oz13003)
About this Plan
Beta Magic. Radio control sailplane model. Wingspan 2.4m.
The original Graupner Beta (oz7557) dates back to 1977, and was an RC sailplane at 78 in wingspan. This here is a modern plan, drawn up from scratch in CAD, showing an enlarged version of the Beta at 120% size with 2.4 m wingspan.
Direct submission to Outerzone.
Quote: "Dear Steve, a friend and flying mate, Ingo was always dreaming of rebuilding his 1st kit which was a Beta from Graupner. I started to help him and designed the Beta magic which is 120% of the original 2,4m instead of 2m. (Normally the magic has 125% but the wood parts fit better in this 1:1,2 scale.) A laser cut kit was made, just a handful for some friends. The aerodynamics of the old vintage original were bad, but it was good looking plane in that days. So the original profile was exchanged to a Selig Donovan and as the original had issues with a heavy tail, the planes stabilizer was changed from flat to profile. This leads to a CG at 45-50% at the wing, helps to save trim lead in the nose. The plane became a f-tow coupling and can be easily flown with a light electric plane in front.
So the result was a good looking plane as the original one but with much better flying characteristic. On slight conditions at our local hill it stays up and in light thermals it goes up. I included a FPV shoulder-exchange so you can also fly it from the googles. Thanks to Ingo for giving the impulse to build this beauty and special greetings to him at this place to get his plane finished soon. Cheers Matthias"
Some links to video:
Bad conditions at the hill: https://www.youtube.com/watch?v=PCo9V31hVmU
Michaels maiden: https://www.youtube.com/watch?v=vmCDaE2AiW0
Note the main planfile here is a single PDF file with 9 sheets. This serves as a quick overview. For a more detailed (itemised) view, see the supplement file "named_sheets.zip" for the same plan, but here each plan sheet has a title of material and size. Then of course there is the full CAD file download in DXF format. Steve.
Supplementary file notes
Named sheets zip.
Photo pack zip.
This plan is available for download in CAD format.
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User commentsWell done Matthias.. Great work great plane..
Murat - 04/05/2021
Thanks ;-) Hope you will build one and give feedback.
Matthias Moeller - 05/05/2021
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- Beta Magic (oz13003)
- Plan File Filesize: 525KB Filename: Beta_Magic_oz13003.pdf
- Supplement Filesize: 551KB Filename: Beta_Magic_oz13003_named_sheets.zip
- Supplement Filesize: 3317KB Filename: Beta_Magic_oz13003_photo_pack.zip
- CAD Zip Filesize: 360KB Filename: Beta_Magic_oz13003_cad.zip
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