Masson-Marine has always been working with the major survey organisations; therefore, the performances of our transmissions (reverse-reduction gearboxes, speed reducers, etc.) are in total compliance with the specifications of each organisation.
As to the Masson-Marine propellers, we team with the same organisations here, but on a case-by-case basis for each order. In this way, each propeller has its own distinct certification, which may, however, apply to 2 or 3 propellers at a time, provided they are identical and designed for the same ship.
Please see the classification offices, with whom we are used to co-operate, here: