Keel use
If the lake is too shallow for the keel to be down all the way, you need to find a different body of water. The only reason the keel swings up on the Catalina is to allow trailering or beaching in shallow water. Keep the keel down whenever sailing. It's purpose is to keep the boat moving forward instead of sliding sideways and to give stability against the mast and sail which is trying to tip the boat over. When it is cranked up, it is doing neither. With the keel cranked up and the main sail up, a gust of wind will roll the boat over in a heartbeat. Needless to say, when it rolls over and having no floatation, she is going to the bottom!I recommend that you get some experienced help to go with you for the first several times.