Navy Warship 　　 The silent propellers designed and manufactured by Hung Shen have been installed on eleven Navy warships.The propellers were manufactured to ISO 484/2 Class "S" standards. The performance of the propellers has been verified as superior by the customer.
	Navy Patrol Vessel The Navy triple-screw guided missle fast patrol boat has been equipped with propellers and shafting systems designed and delivered by Hung Shen. The propeller induced vibration and noise level have been found to be very low even at the maximum ship speed of 35knots.
	Offshore Patrol Vessels 　　 Twin screw offshore patrol vessels, owned by the Navy, have been equipped with propellers designed and delivered by Hung Shen. The sea trial speed of the vessels was determined to be higher than the required specification. By using the new-foil section, the cavitation extension and its associated vibration and noise have been controlled very well. The performance of these propellers has gained the affirmation of the ship owners, ship builders, and ship designers. 1. 720 Tons Coast Guard Vessel,     31Knots 2. 600 Tons Custom Prevention Ship ,     31 Knots 3. 720 Tons Coast Guard Vessel, 31Knots
	Fishboat & Workboat 　　 The silent propellers were installed on the Tuna Purse Seiner constructed by Ching-Fu Shipbuilding Company. The advanced propellers enable the ship to achieve a low underwater acoustic level while underway. Thus, the propellers not only increase the fish catch, but also reduce the noise and vibration level in the cabin.