Gliders > Slope Soaring
Ninja
antonio:
Off to the wings and a task I was dreading, described in the manual as "truing the edges" of all balsa sheeting parts. I got a nice hardened steel ruler from Homebase and gripped to the table on one end, held the other to shave all irregularities. I did something wrong or I simply have too idealistic views of the extent to which natural materials can be finished. But when gluing the sheeting together, I found there was a bit of warping. When the five pieces were glued along, the resulting skin was not flat, but raised above the worktop one or two mm here and there.
Gluing was also interesting. I used thin CA, with waxed paper underneath, but still had to pull stuck paper stretches a few times. No damage though.
Below are my finished wing skins, not exactly flat as you can see.
antonio:
I followed this video to glue the wings (starting from 3:00):
http://www.youtube.com/watch?v=KUoEAruPVAI
PU glue (I found Gorilla glue in Homebase), spread thin with a plastic card, bit of moisture in the air and to the press for 24 hours. Average humidity while gluing and curing was 65%.
With the exception of a couple of tiny spots where I spilled glue on the outside of the skin and had to sand a bit of mould foam, things went ok. Trimming the skins down to the core was scary (done by hand with blade, the planes I have seen look too heavy for the job) but it's done. Sanding was done handling the wing over worktop covered with 200 grit paper. Tricky - I wonder if there is a better way.
Next, gluing leading and trailing edges, and wingtips. PU or epoxy? If you feel strongly about one of those, please shout... soon :D
billscottni:
Try a search for a Davids plane, small and handheld uses a double edged razor blade
antonio:
--- Quote from: "billscottni" ---Try a search for a Davids plane, small and handheld uses a double edged razor blade
--- End quote ---
Thanks. This one perhaps? http://www.skykingrcproducts.com/accessories/david/david_razor_plane.html
billscottni:
That's the one Antonio, but you can get them in the UK
http://www.4-max.co.uk/davids-razor-plane.htm
http://www.sloughrc.com/default.asp?itemid=T-DT4
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