The early 1930s saw the development of several ‘advanced’ trainers, one of which was the Link Trainer. Paul Mantz gave Amelia Earhart training in a Link in preparation for her round-the-world flight in 1937.
More novel was the Ace-of-the-Air trainer developed in 1934 which gave actual training in miniature ships with a full three-plane platform. The pilot could roll, loop, spin, and perform all of the standard airplane maneuvers. The single-seat plane(s) were arranged within a gimbal free to rotate around its own axis and, at the same time, move around the central pylon on a circular track. By applying the ailerons the plane could roll over with a collar that embraced the fuselage. The effect of forward speed was obtained by running the ship around the circular track while the application of the vertical rudder can swung it to the right or left. Perfectly simple and perfectly safe!
For more information: http://www.simulationinformation.com/education/early-history-flight-simulation