In the naval field, most of the basic or well-founded knowledge passed through empirical knowledge carried out in fields by innovative people in need of strong answers to solve the problem.

It is where certain techniques have been done, for a long time, which have motivated and accredited that the work done on steel or bronze parts are reliable and highly recommended.

At Rice foundries we have the most up-to-date software in the realization of designs and plans, so our security is proof of all the years we have worked. But of course, despite having technology and being all calculated, the "Prussian Blue" technique has been and continues to be used to verify the seating of the propellers with the main shafts, using the keyway to verify the bottom, as well as the disclosure when machining or pointing to isolate a part.

It is mainly used to check if there are failures in the propeller cone when installed on the main shaft of the boat.

When manufacturing a propeller, either under SAEJ755 rules or customer requirement, you need to know the cone. The most common used in LAT and US are 1:16 and 1:12, as well as there may be 1:10 European cones, but in order for both parties to share these same rules and decimal function to avoid problems.

With the use of software we make sure that everything is reflected, that it is carried out without error and based on SAE or ABS rules.

At Rice Foundries we have the experience that characterizes us in the naval and industrial field.