Lanteigne's system of aerial navigation, which used a continuous belt of sails to achieve propulsion (1853). Original from… https://www.rawpixel.com/image/7687954/image-arts-balloon-public-domainFree Image from public domain licenseAuguste Lanteigne proposes a system of airship navigation utilizing a series of 16 balloons on a single keel. Original from… https://www.rawpixel.com/image/429694/free-illustration-image-vintage-balloon-instructions-airFree Image from public domain license