This propeller is perfectly matched to the Vittorazi Moster and is also “Vittorazi Approved”, so your warranty on the motor remains valid when using this propeller. This propeller is perfect for combining a medium frame with the Power of the Moster engine, whilst the specific profile of this propeller ensures adequate cooling of the engine at all times. Sold thousands of times, this propeller is a real classic for the Moster engine and fits every series of this engine. Perfect for every pilot who prefers the pleasantly smooth running of a three-blade.