Second-generation type-certified propeller delivers for Cirrus Aircraft’s SR-22 at a ... The new blades also had to transition from an airfoil shape to a round stainless shank that connects them to ...

The engineering team at MT-Propeller was able to increase the TBO for the 7-bladed propellers to 3,600 hours or 6 years, whichever comes first.

The blade tip speed limit of a propeller plane's propeller can determine the plane's top speed for reasons relating to design ...

That could mean parts of the aircraft near the open blades will need to be reinforced. The best thing, though, is to stop the blades breaking in the first place. For that, new materials will help.