Hi all, I intended asking Catalina 28 owners what speed I should get under power with a Yanmar 3ym 20 but read old posts about the 28ts pulling to port. Mine has a bad pull to port under power. I recently completed an 800mile delivery trip in it and with light winds had to motor sail for long periods. The pull to port made the trip very tiring, especially on overcast days with no visible landmarks and worse at night, it meant 100% concentration compass and gps or in a few seconds she would veer off course 20 to 30 degrees. This lead me to believe that I had a bent rudder shaft or alignment problem. When I slipped the yacht I discovered that the rudder shaft appeared to be straight but when sighting along the face of the rudder on each side to the centre of the keel the rudder appears to offline to port by at least 20mm. With several other owners reporting the same problem, but no one seemed to have a solution, and these posts were 8 years old I was wondering if a way to correct the alignment has been found. I have owned many boats, yachts and cruisers, and never had this problem before, there must be a solution. Any help would be much appreciated. With the 3ym 20 yanmar my top cruising speed at 2800 is 5.2knts, is this normal?