I own a Catalina 18 and due to its fixed keel I need to launch at ramps that are steep enough to get the boat into deep water quickly or that have enough pavement to allow me to use my trailer extension. I’m interested in finding ramps generally in the Chesapeake Bay, Eastern NC, Charleston, and Jacksonville FL regions. What is the best approach to identifying suitable ramps? Presumably finding ones where other keelboats have launched without any specific mention of my boat model.