Yes, the manual helps
My manual has been of great help over the years we've owned the boat. As a matter of fact I just answered a question from another boater about the LWL of our boat, an Oday 272, a few minutes ago on the Sailnet website. It contains information about commissioning, dimensions, capacities, drawings,operation,maintenance and manuals,including lists of original equipment suppliers. (Rudy Nickerson SHOULD be there, but you have to get that info from folks on this site.) I use it to answer rigging questions. There are diagrams of the systems on the boat. There are even float plans which I copy and use as necessary. The manual was absolutely the most important document I had at hand to learn about the boat (until I found this website).Tom