Alternative technological solutions

摘要

Current technology is capable of increasing fuel savings from 10% to 50% by means of:rnContra rotating propellers would offer the following advantages:rn1. Short main engine and reasonable propeller size.rn2. Very high propulsion efficiency (10% improvement vs. twin screw depending on relation between main engine and thruster)rn3. Less installed power and low fuel costs.rn4. Propulsion redundancy.rn5. Very good manoeuvrability.rn6. Flexibility - propulsion and electrical powerrn7. Reduced size of engine room.