....................MY MAIN POINT FOR ASKING IS BECAUSE WHEN THE CATALINA KEEL IS UP IT STILL SHOWS 85% OF KEEL AND RESEMBLES A SHOAL DRAFT KEEL, UNLIKE A MACGREGOR WITCH HIDES ALL OF THE KEEL WHEN IN UP POSITION AND DOES NOT SEEM AS STABLE. This fact makes me think that I could sail the boat in pretty good wind with keel up and keel half way down or all the way down in really high winds. ........
Hi, I have a C22 S/K also but I really try not to sail with the keel up.
1)It really doesn't appreciably go any faster even on a downwind (If your'e interested in speed.) and if you do decide to change course on that downwind with forgetting that it's up, you could lay her down.
2) It is noticeably more tender with it up as it changes the center of gravity. My keel is intentionally designed with the center of gravity lower than the midpoint. This means that the keel's C of G is about 4' below the W/L when down and at about 2' 5" below W/L when fully up. The lower the better for this.
3)The boat pretty much sails fastest with it down. It's hull shape makes it most efficient at a maximum heel angle of about 10-18 degs. range at most. I have tried it up in lighter air and it seems a lot more tender to me.
4)These boats will not float long if they swamp and this time to the bottom will be much shorter if any of the hatches are open. A boat sunk
5) The boat is designed to have it down. Some people will use the locking bolt under the seat but it doesn't hold well in a 'situation". Consequently if you ground out and drag the keel over rocks with the cable part way up, the keel could drop to a stop against the cable. This could cause the cable to break or the winch system to fail. Grounding could also put a big strain on the 4 small keel bolts at the pivot pin if there's any side movement with the keel planted in the bottom.
For the depth issue, I'd advise a depth sounder / fish finder will work also. I have a place that's too shallow and it catches me sometimes. If I ground out, I drop the sails asap, raise the keel off the bottom and motor away. Then next fall,I will be adding more epoxy filler to the keel where it hit.