As mentioned, when we ordered our T37 (loast S&S design built - Hull 486), Tartan had switched over to the Jackett design T 372. The T 372 was designed with a double spreader spar so that was what was installed in our new T37. I have not actually measured the height of the single spreader T37 mast on the T37 we frequently sail with but visually they appear to be of similar height. Also. the chainplate locations for the shrouds are the same as is the total number of shrouds. I assume that the double-spreader mast we have, if larger, was cut down to be the same size as the single spreader mast for which the boat was originally designed.
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