The picture on Wikipedia is the Woodstock that Bob Wander built, now owned by Matt Michael, who taught me to fly gliders. Its an absolutely beautiful piece of art and a really nice sailplane too. I've done a few cross countries with Matt side by side in my homebuilt Cherokee II. https://picasaweb.google.com/cheroke...OctoberSoaring
Carbon fiber leading edges would be interesting to investigate. I've done some preliminary investigation into what it would take to do the same on a Cherokee II. It will definitely be more expensive than plywood but would have the potential to look a lot cooler. Also, Dick Butler is using a super lightweight sticky-back plastic covering for the control surfaces on Concordia called Solar-Trim which would be interesting to investigate. See more here: http://soaringcafe.com/2012/02/conco...photo-a-day/#1. The guy, Chris, who is helping DB with the covering and other stuff, posts on RC Groups. I'm guessing that it is not robust enough to cover large open panels like between rib bays on full size aircraft but with the light wing loading of the Woodstock it might be worth investigating further, you never know. There are probably some large R/C gliders/planes that approach the same wing loading. God knows there are R/C gliders that have the same span!