The "Jersey Devil", also known as the "Jersey Mosquito" or "Ochoaplane" built by Victor Leaton Ochoa, and datable to 1908-09 in the USA. Based on two bicycle frames between which was mounted a six-horse power motor and below that a seat for the operator. The whole machine weighs about 250 pounds. The craft is notable for having several 'interesting' design features, such as the retractable truss-work wing structure, and the wing surface being concave, not convex.