2 ADJUSTMENT PERIOD

Rerigging the boom on my Sabre 30, Ora Kali, has made all the difference.

- ANN HOFFNER

The mainsheet on our new Sabre 30 didn't look right. It was the middle of a hot, airless July week. We'd bought the boat barely a month earlier, and now we were attempting to get it from New Jersey to Maine. Because of the lack of wind, the mainsail sagged as we motored up Long Island Sound. I had plenty of time to look at Ora Kali's boom but not a lot of incentive to solve any problems.

Then one day, we were tied to a mooring in the harbor at Scituate, Massachusetts, cheek by jowl with another Sabre 30. Wow, I realized: Our block-and-tackle arrangement is just wrong.

The weight of the boom and pressure on the mainsail on a small boat are light enough that the connection between boom and hand can be direct, but a boat of any size requires an arrangement of block-andtackle to make it manageable.

Block-and-tackle reduces the forces necessary both to hold something in place and to lift it. In terms of mainsheet tackle, a block-and-tackle system makes it easier for the person in the cockpit to steady or control the boom and to sheet in the sail when there's wind.

Ora Kali has three blocks in her mainsheet tackle. While the arrangement on the port side was fine for holding the boom in place, it did not take full advantage of the power for sheeting in. I took down the blocks and rearranged them. The correct arrangement gives a 3-to-1 advantage on the aft block-and-tackle, and employs the forward block mostly for turning.