by Tatra Man » Sun Sep 10, 2006 7:08 pm
As far as turning headlights, technically anything that turns is called a turning light and not a headlight. As someone mentioned before, turning lights were available aftermarket early on. The original Tucker design by George Lawson featured two turning lights (built into the cycle fenders which turned with the steering), and one center headlight. When Alex Tremulis took over from George Lawson, Tremulis' initial designs also had cycle fenders with lights built in. He later changed the design to normal fixed fenders with a center turning light.
In regards to the Tatra and turning lights, a diagram does exists showing that the 1935-8 T77 Tatras might have had an electric servo that moved the center light one direction only. Unfortunately the diagram does not explain what direction the light could be turned or what the purpose of turning it was. Did the light turn to the side of the road for better illumination? Did it flip down to reduce blinding or confusing oncomming traffic? No one knows and none are known to survive.
Incidentally, the initial purpose of the Tatra's center light was not an additional third headlight, but that of a fog light. But as things progressed, a center headlight or fog light was possible.