ANALISYS OF THE OPERATIONS OF A CATAMARAN IN SERVICE IN THE NEAPOLITAN GULF; COMPARISON BETWEEN FULL SCALE TRIALS AND TOWING TANK TESTS

摘要

This paper presents a further step of the Research carried out in the Dipartimento di Ingegneria Navale of Naples (DIN) on the energy monitoring of the naval traffic in the Neapolitan Gulf, financed by the Regione Campania -^sItaly. In particular, in the scene of this activity, the Pe/Pd efficiency has been evaluated by comparing the towing test and the full scale tests data. In order to do so, a series of tests were carried out onboard a catamaran in service in the Neapolitan Gulf and on model in the towing tank, at the same load and trim conditions. Custom instrumentations, designed and built in the DIN, were used both for sea trials and towing tank tests.