Re: Looking to buy C21-many keel questions
The keel plug is as the name implies. It is a piece of wood (mine has a metal foot at forward end that rests against back edge of the lowered keel) that fills the slot in the center of the cockpit floor, from where the keel is lowered. It's not a tight seal that keeps the boat afloat, it just keeps your feet a little more dry. Should there be a problem with the one offered with the boat, there are dimensional drawings available online. Simple to make. I'll try to get back with a link to those drawings, and it contains a lot of other good info. Good luck!