trailer sailer

I recently replaced the keel cable and winch on a 21 San Juan. When I purchased it the window was open and left exposed. Does anyone have experience in repairing this? Hoping to get recommendations of how to properly seal it and what thickness of plexiglass, ect to use. This first time sailboat...

I have a 1976 Mariner and only sailed it a few times. When I bought it , it did not have a regular jib but only a 130 % . I seen videos of regular jib rigging and I understand how that should work, but the 130 comes so far down the side of the boat its difficult to use because none of the...