McCauley Black MacMcCauley has been designing and manufacturing high quality propellers for over 70 years. For more than six decades, McCauley has set the standard for propeller design. Their engineering and performance accomplishments are unequalled in the industry. And their line of piston and turbine propellers continues to push performance to new limits. McCauley’s family of propellers is as diverse as it is durable. The innovation McCauley builds into every one of their propellers comes out as a unique benefit to you. Benefits such as unequalled performance, unsurpassed safety and reliability. And a new dimension of durability and dependability. And there’s more. Every standard OEM propeller and every BLACKMAC STC model delivers advantages found only from McCauley.