Asmund,


The Scimitar Master Airscrew props are more effective than the black GFN props from the same company.
As far as performance goes, they offer slightly less load than APC props of the same sizes.

This higher RPM will give them about the same thrust as the APC.

They are, however, more RPM limited than APC.
The RPM limit given by MA is 160,000/diameter, while APC are limited to 190,000/diameter RPM.

Also, their hub thickness is MUCH greater than same-size APC props, making them unusable in some situation where an APC can easily be used.