Post date: Dec 17, 2015 2:49:19 PM
In this past week, we have put our taxi boat hulls into MaxSurf, a hydrodynamic analysis program, to determine the efficiency of the new hull. The hulls were entered into the program and the resistance, which equals to the amount of force it takes to move the boat through the water and is measured in kN. A boat with high resistance uses up more energy and thus creates more moto ondoso, while a boat with low resistance does not require as much energy and therefore creates less moto ondoso.
We analyzed the boat hulls at two different weights: each hull with the heavier single skin structure and each hull with the lighter sandwich skin structure. The boats were also entered into the program as travelling at 20 km/hr, which is the highest speed limit within Venice’s canal system. After the hulls were analyzed, we discovered that the new hulls are 29% more efficient overall. When the hulls were analyzed at the same weight, there was a 19% increase in efficiency solely due to the changes in the boat’s structure. When comparing the new hulls’ efficiency at different weights, there was a 10% increase of efficiency in the lighter boat. Essentially, a boat with increased bow penetration, an angled keel, and a rounder chine and manufactured out of a lighter material will produce almost 30% less moto ondoso.