- Above is a picture of the first gyroscopically-balanced in the United States. Louis E. Swinney first thought about monorail concepts in1948 and later would build several prototypes to promote the concept. Believing that so-called conventional monorails needed too much materials for a beam, as well as cumbersome bogies, he thought that gyro-monorails could take transit one step further into the future. Along with his partners, brother Ernest F. Swinney and friend Harry Ferreira, designed and built a small backyard gyro-monorail in 1962 to test the concept at 42nd and Metropolitan Avenue in Kansas City, Kansas. It operated successfully for several years and was demonstrated to the press on several occasions. The small, jet-age finned vehicle traveled along a steel pipe supported on wooden pylons approximately three feet above ground level. The Swinney-Ferreira team also developed a two-wheeled car based on the same gyroscope technology.