Slope Soaring Sussex is a friendly group of RC glider flying enthusiasts based in Sussex, UK. We slope soar at various locations on the South Downs and have a field for thermal soaring. ‘Slope Soaring Sussex’ is a BMFA affiliated RC Glider-only flying club. We fly many types of RC gliders from conventional slope soarers to Scale, DLG, F3B, F3J, F5J, PSS and more. Our aim is to encourage and promote safe, responsible and enjoyable radio controlled model flying. New and experienced flyers welcome.
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Wednesday, 16 September 2015
Algebra Build 5, Sanding the LE and TE
Well lots of sanding, planing and carving this time. Not much to report other than lots of dust!
Having got the LE and TE stuck onto the foam cores correctly, it's time to get everything as smooth as possible. It's amazing how, while visually nice, things are very lumpy and bumpy when you get a sanding block to them.
If you remember from a previous post, I have a piece of 2" square Ali tube which I'd been using to help weight down the wings while glueing. I cut a section of this off to give me a nice flat and square sanding block. A bit of 2" double-sided tape and a piece of sandpaper glued to it, it looks like this:
It's essential to have a square and flat sanding block - equally as important as a square and flat building board!
When it comes to sanding the ends of the wing panels for joining, the appropraite angle to allow for dihedral will be achieved by blocking up the wingtip to the correct height, then using this sanding block on the other end. Because it's square, it'll create a perfect right-angle with the building board.
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