The propellers installed on your yacht are steel with a double counter-rotating propeller design.
The four blades at the front and three at the rear provide the best combination of speed, acceleration and grip.
In the event of impact with the seabed or submerged/semi-submerged objects, check the condition of the propellers immediately.
In the event of noticeable vibrations, reduce engine revolutions to a minimum and head to port for repair, as increased vibrations could cause damage to the yacht’s propulsion parts and structures.