Wow, lots of interest!
Klaus,
I'd be very interested in your foil measurements as well. I think you posted your modified NACA 0012 foils on this site at some point. Did you do inverse modelling in Xfoil for their generation or?
All,
Bending of metal can be done but needs the proper tools. I've got some links to some potentially lighter and relatively inexpensive rudder hardware (A-Cat builder).
Foils: My method of construction can be found here:
http://www.single-handedskiffs.com/images/centerboard_construction_final.pdfI may make some changes, probably reduce the layup schedule where appropriate, possibly go for a more finished route using mylars during the layup. I have the foam cutting equipment and vacuum bagging supplies needed to do this job, plus I've done it a dozen times with model airplane wings.
Cost: I've found some cheaper sources for bigger ticket items (mainsheet blocks for example). The Tornado mast sounds very viable, if the sail is cut to match. This would save ~$1.5k. If used competitive F16's were available for less than $10k, I think I would go that route and drop the home build. The Blade, while competitive, is an outdated hull design by Viper, Falcon and Razor standards, plus I feel it is lacking in volume (ok for lighter air sailing but I would be happier with more volume on a distance race for example). Another option may be acquire a F18 and build the F16 over the winter. At this point the project is in the planning stages, so may get derailed by life but I think it is pretty feasible.
