David is ALMOST right
You probably have a tall rig if you have a bow sprit, and a standard rig if you don't.However, his dimensions (and the names for them) were incorrect.He's right, though on how to tell what size sails you currently have. Measure your mainsail. The hoist (the side closest to the mast) will measure slightly shorter than 35' if you have a standard rig, and slightly shorter than 37' if you have a tall rig. This measurement is called the "P" measurement. In a similar way, measure along the foot. The standard rig will be about 11.5' an the tall rig will be about 12'. This dimension is called the "E" dimension.If you have a black band near the end of your boom, measure from the mast to the inside edge of this band. This band is supposed to show how far out on the boom you may pull the sail using the outhaul, and should match the "E" dimension fairly accurately.The "I" and the "J" dimensions are a little harder to measure, and are respectively the height of the mast from the shear line of the hull to the highest attachment point of the foresail. It does not match the length of your mast, as the mast is sitting atop the cabin, and the shear is at approximately deck height.The "J" dimension is the distance between the front surface of the mast to the attachment point of the fore stay (measured perpendicularly to the mast). Since the head stay attaches slightly below the base of the mast, this distance is also difficult to measure exactly.But again, with a very high (but not absolute) degree of assurance, if you have a tall rig, you will have a bow sprit, and if you have a standard rig, you will not have a bow sprit.SteveAlchemistC-30T #4764C-320 #909