The model is a 5ft , I/5 scale model of c class catamaran edge. the wing is a two element with a slot between. I am about to water trail it here's hoping it goes  
flying wing
<p>What is in the .pdf download? </p>
<p>Hello Barry - nice work. Have you compared the weight of the soft sail rig and and the wing sail? I build and sail Mini40 trimarans which are 1.22m long. I would like to build and fit a wing sail to the boats but have always been put off by the weight. Some photos are attached here, plus a link to a video </p><p><a href="https://www.youtube.com/watch?v=ZN8mcWJgtZg&feature=em-subs_digest" rel="nofollow">https://www.youtube.com/watch?v=ZN8mcWJgtZg&amp;feature=em-subs_digest</a></p>
hi Barry, <br>Looks great! and without a jib, your wing works great.
light weather mode
Here are a few pictures of my work bench. for scale the wing is 1.800 long and .390 wide.
soft sail version
Looks great Barry, I have a simular project here on Instructables &quot;RC Wing Sail Catamaran&quot;, I will follow your progress with great interest. Good luck with your first sail, I can't wait here how it goes.
Hi Dan your project inspired me . I have been on the project for 4 weeks now and done 4 test sails . I like to say all went well but I have a lot of tuning to do .I have put a jib on to help tacking, which it has I pitch poled it in 15 knot , but sailed again in the afternoon with. better control 8 to 10 knots. It is a bit sluggish in light winds. but goes well when in the grove which is narrow. Got a lot to learn.
more pics
additional pictures
additional build pictures
The hulls are 1mm ply sides &amp; decks, bottoms fiber glass done in a female mould
That's a pretty nice model! Can you tell us a bit more about how you made it?

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