Opposed Piston Engine: Apparently it can have better thermodynamic properties which leads to better fuel efficiency. There are a bunch of different tradeoffs with maintenance and engine size too, but it really depends on the specific applications
The efficiency of the ship propeller is pulled down by various losses such as vibration and noise. Learn about some of the important methods used by ship designers to reduce propeller vibrations and increase its efficiency.
ROCKLAND — Watch the waters Friday, Aug. around 3 p. as the stately Coast Guard training vessel Eagle sails into Rockland Harbor with 200 cadets, crew and officers onboard. The largest tall ship sailing under the U.