After a long 6 months finally got Bismarck out for sea trials. The run was going good till the model went dead in the water in the middle of the pond . I had to let the wind carry it to the shore on the other side. It was a long walk back with a 40+ pound model on my shoulder. I tried the second run after switching out the mag switches but prior to launch the throttle system refused to work . Back in the shed I troubleshooted the model and found the wires to the switches were just old and corroded . I didn't have to replace the msg switches after all. I left them in and replaced the wiring which was there since 2009. Bench tested and all is well. Hope1 to get it out soon.