Currently under development, the AP620 symbolises the pinnacle of propeller development in the experimental aviation market.  It has been designed specifically for aircraft using Lycoming 360 and 320 engines, which have an intended cruise speed of between 140 to 180 kts.  The blades are manufactured by Global Aircraft Corp of the USA. With these it is expected that the AP620 will provide unmatched performance and efficiency. Easy operation via the AC200 SmartPitch controller.  Preselection of engine speed for Take-Off, Climb and Cruise operations reduces pilot work load during critical phases of flight.  See details on AC200 SmartPitch controller . Fully electric!  This propeller system does not require any hydraulic fluids or pumps, and can be used on solid crank engines.  Each hub is machined from solid billet on our inhouse 5 axis CNC machine tool, ensuring complete accuracy and repeatability.