tralika
Well-Known Member
This video shows the result of a test of the Duc fixed pitch propeller that performs like a constant speed prop. The blades of the prop are not adjustable in flight making it LSA compliant. However the design of the blades make the plane fly faster in cruise flight with lower engine RPM. The prop blades and hub are all carbon fiber and are ground adjustable.
https://www.youtube.com/watch?v=LaXsQl9Lz4U
http://www.duc-helices.com/index.php
https://www.youtube.com/watch?v=LaXsQl9Lz4U
http://www.duc-helices.com/index.php