Land Yacht with Wing Sail

thingiverse

#CatchTheWind NOTE: Some of my files got corrupted and I'll be posting them as soon as possible. This is a working land yacht powered by a rigid wing sail that can be controlled by either 2 RC servos or by free sailing. My goal for this project is to create a working demonstration for students to print out and explore the physics of airfoils. This uses a NACA0018 Airfoil as the wing sail, which is printed in 5 parts, glued together, and placed on the removable mast. One of the wheel sections has a GoPro mount attached for video recording. The free sail version is designed to have two students on either side of a parking lot. One sets the sails and lets it go, while the other student catches the yacht and sends it back. The RC version is fully controllable with full steering and 320 degree wing control. The Wing Sail is 100% 3D printed in 5 parts. A more efficient method would be to print a frame and then laminate the airfoil with a skin, but I wanted to keep construction to a minimum. The servo version will require servos, a battery, a receiver, and a transmitter. Both versions will require wheels, some nuts and bolts, 1" PVC pipe, CF mast, and line. I recommend using 50lb (or higher) braided fishing line. The wheels are 72mm Rollerblade wheels from Amazon. I could have printed wheels, but they wouldn't be as smooth or durable. Check the instructions for assembly details. This was printed on a 200mm cubed volume printer. Future versions will include: - Adding a club-footed Jib sail to help power the yacht - Attaching a windvane sensor to an Arduino. Since a NACA airfoil has a particular AOA it prefers, the Arduino would automatically adjust the wing angle to match the apparent wind.