Hydro Armor 450HD-B-12
Hydraulic tiltable rudder propeller / navigator
With Hydro Armor hydraulic rudder propellers you will have optimal manoeuvrability, as you can go from full steam ahead to full astern in 2 seconds and steerage is very quickly.
The tiltable system has a break-pin systems to prevent any damage in case you might hit something. These pins will break and the propeller will automatically tilt upwards.
This type is often used on dredgers and is similar to Thrustmaster Workmaster WM50.