"The Horten Ho 229 was meant to change the outcome of World War II and pave the way for German bombs to fall on America. The radical plane never worked as planned, but it's still a fascinating and important part of history. Only one Horten still survives. A few years ago, it was in very bad shape. Discover how Smithsonian conservators saved the plane from rust, rot, and ruin. The hands-on STEAM challenge is ideal for makerspace activities, and guides students through every stage of the engineering design process.".