You probably didn’t know this, but a Central Coast university has a 500-foot-long, 11,000-ton ship. But, after 30 years of service, the Cal Poly Maritime Academy is retiring the Training Ship Golden Bear. It just completed a 12,500-mile voyage across the Pacific Ocean with 283 Cal Poly Maritime Academy cadets on board. Academy officials say it’s trained generations of maritime professionals. The four-decade-old vessel will be replaced by the Golden State, which is expected to arrive next year.