This is the category propeller which was the very beginning back in 1985, when the first Born propeller for a Schwarze Minimum was shown at the Aero in Friedrichshafen (Lake Constance, Germany). Wilfried Bleidiesel had tested it before on the occasion of the training course on the Minimum. Find more details of our history below in the service area of the website. If you need other sizes than offered here, just use the configurator.