I own the cb version of the N/M Morgan 36. The drawing posted above by Mauipunter is correct only difference is the metal pole the centerboard line runs through is mounted along the main cabin bulkhead. On deck we have the center board line lead to a clutch by one of the cabin top winches. We put new instrument in several years ago. The plug for the transducer on centerline was solid glass more than 3/4in thick. It is a solid boat and does well offshore.