Making Sure The Mast Is Straight - Nacra F20 Carbon Assembly & Rigging Manual

Step 9.
Put tension on the diamond wires by screwing in the mast bolt. Measure the
tension on the diamond wires with the loose gauge. This value should be
about 38. More tension means more pre-bend in the mast and that means
less pressure in your sails. For now, put the tension on 38 (125kg/280lbs).
See the trim guide for tips!
It's available for download on: www.nacrasailing.com

1.6.4. Making sure the mast is straight

Step 1.
After the mast is assembled have a look from the mast base along the
mast rail to see if the mast is straight. If it is, skip this paragraph and conti-
nue with 1.6.5.
Step 2.
If the mast bends to the right, shorten the port diamond wire (like in 1.6.3.
step 3). If the mast bends to the left, shorten the starboard diamond wire.
Put tension on the rig again and have a look down the mast rail to see if it's
straight now. If it is not, repeat step 2 until the mast is straight.
Step 1
Step 9
Step 2
22