Mainsail Cover Measurements
Worksheet
Type of Boat
1). Overall length of boom from front center of mast to 3" beyond end of sail. Note where boomvang, mainsheet, etc will interfere with fasteners placement (example: no hardware from 50" to 56" from front center of mast). (ft) Boom Length:
2). Circumference around the mast including any halyards that you wish to cover. (inches) Mast Circumstance
3). Width of the head board (inches) Head Board Width
4). Height of the stack covering any winches/hardware on the mast, make note for any reinforcement needed for special hardware (inches) Stack Measurements
5). ½ girth measured from front center of the mast to the throat of the sail, leave plenty of space for the sail stack. (inches) Measurement:
6). ½ girth measured from the throat of sail on a 45 degree angle to mast front center. (inches) Measurement:
7). ½ girth measurement at ¼ measurement of "#1" (inches) Measurement:
8). ½ girth measurement at ½ measurement of "#1". (inches) Measurement:
9). ½ girth measurement at largest point of clew patch (inches) Measurement:
NOTE: 5, 6, and 7 should all intersect at the same point on spine of cover