no swatch plate
Cant resist, I think you will find its called a "swash plate". Can not decide why though! .Perhaps its because a gimble surrounded by a rotating housing carrying the pitch adjustment rods that are connected via a bearing to a non rotating star which carries the movement to the rotating star, which is moved by cyclic and collective push rods which are connected to both the cyclic and collective levers both of which are controlled in their vertical plane by the mixing arrangement etc, etc. On second thoughts why not call it a swatch plate. Bug.