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Nacra prindle 15 16 18

Nacra prindle 15 16 18
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Nacra prindle 15 16 18

Product catalog summary
Introduction
This manual provides guidance for the assembly, maintenance, and use of the Prindle Catamaran. It encourages owners to follow the instructions and share improvements with the company. New owners are invited to join the Prindle Class Association for newsletters and event access.
Section I: Assembly
Preparation: Lists necessary tools and initial setup steps, including unpacking and identifying parts.
Crossbars: Instructions for attaching crossbars to the hulls using bolts and sealant.
Trampoline: Details on installing and tightening the trampoline using lacing lines.
Rudder System: Steps for installing rudder castings, tiller crossbar, and rudder blades, including alignment and operation.
Mast and Rigging: Instructions for assembling the masthead, spreaders, and diamond wires, emphasizing secure attachment to prevent mast breakage.
Section II: Sailing
Guidance on sail trim, trapezing, launching, tacking, jibing, and righting the catamaran. Includes tips for different sailing conditions and maneuvers.
Section III: After Sailing
Instructions for loosening the rig, lowering sails, and preparing the catamaran for trailering.
Section IV: Maintenance
Maintenance tips for various parts of the catamaran, including the dolphin striker, battens, hulls, rudders, and sails.
Section V: Tuning Performance
Advice on adjusting mast rake, mast rotation, and using the barberhauler to optimize sailing performance.
Section VI: Supplemental Information
Includes a glossary of terms, knot illustrations, and a diagram of major boat parts to aid understanding and communication.
Mast and Rigging Assembly
The mast is not covered under warranty for breakage due to improper tuning, assembly, or maintenance. Detailed instructions are provided for attaching the mast rotator wishbone, threading rigging, and securing shrouds and trapeze wires.
Shrouds and Trapeze Wires
Instructions for attaching twist clips, securing shroud thimbles, and adjusting trapeze height.
Forestay and Jib Halyard
Details on attaching the forestay and jib halyard for different Prindle models.
Main Halyard
Instructions for securing the main halyard ring and raising the mast.
Raising the Mast
Ensure the boat is on level ground, secure the hinge, and check for overhead wires. Attach the forestay and adjust the turnbuckle.
Diamond Wires
Adjust tension carefully and tape locking nuts to prevent loosening.
Sails and Battens
Instructions for inserting battens and hoisting the mainsail.
Boom and Mast Rotator
Connect the boom and adjust mast rotation.
Downhaul and Mainsheet
Instructions for tying the downhaul line and threading mainsheet blocks.
Jib and Righting Line
Attach the jib and always carry a righting line on the boat.
Tightening the Rig Tension
Adjust shrouds for a tight rig.
Section I: Mast Adjustment
Instructions for adjusting mast rake.
Section II: Sailing
Sail Trim
Guidance on trimming sails for different wind conditions.
Downhaul Systems
Ensure sails are tight to remove wrinkles.
Trapezing
Practice onshore and adjust trapeze wire length.
Launching
Instructions for launching in different wind conditions.
Tacking
Ensure good speed and use half rudder throw.
Jibing
Check direction and move aft.
Balance
Adjust crew position for proper balance.
Righting
Use a righting line to right the boat.
Reefing
Lower the mainsail and secure with reef points.
Section III: After Sailing
Loosening the Rig
Loosen rig tension before lowering sails.
Lowering the Sails
Point bows into the wind and lower sails carefully.
Trailering
Secure the boat and mast properly on the trailer.
Section III: Rigging Storage
Methods for storing rigging while trailering to keep it separate and tangle-free.
Section IV: Maintenance
Dolphin Striker: Ensure snug fit and check for cracks.
Battens: Proper insertion and handling to prevent damage.
General Maintenance Tips: Regularly check and tighten components.
Section V: Tuning for Performance
Mast Rake: Measure and adjust for optimal performance.
Mast Rotation: Adjust for different conditions.
Barberhauler: Optional for racing to improve jib shape.
Section VI: Supplemental Information
Glossary of sailing terms and knot illustrations.
Glossary of Knots
Figure Eight: Prevents ropes from slipping.
Reef Knot: Simple binding knot.
Cleat Half Hitch: Secures rope to a cleat.
Two Half Hitches: Attaches rope to a post.
Double Overhand Knot: Secure stopper knot.
Bowline: Creates a fixed loop.
Truckers Hitch: Secures loads with mechanical advantage.
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Catalog excerpts

Nacra prindle 15 16 18-2

This owner's manual is provided to ease assem- bly, maintenance and use of your Prindle Catamaran. We believe these instructions portray the simplest methods. Do it our way the first time and learn from us. Then, if you discover a better method, feel free to tell us about it by fax- mancecat.com. You may see your idea appear in the next edition of the owner's manual. We are sure you will enjoy your Prindle Catamaran and hope that this manual will make your enjoyment easier to come by. Make sure you join the Prindle Class Association - it's fun and it's free to any new owner of a Prindle Catamaran...

 Open the catalog to page 2
Nacra prindle 15 16 18-3

Prindle Catamaran Owner's Manual Tools needed: large screwdriver needle-nose pliers combination 1/2" & 9/16 box-end wrench adjustable wrench masking or duct tape silicone sealant Your Prindle Catamaran comes packaged in two hull containers, one large hardware box Place the two hull containers approximately 5 feet apart with stapled seams at the top of the cartons facing each other. This will insure that both hulls will be facing the same direc- Open the hull containers. Leave the hulls standing on the cardboard supports. Open the hardware box and familiarize your- self with the major parts of...

 Open the catalog to page 3
Nacra prindle 15 16 18-4

between it and the deck. Tighten all bolts down being careful not to overtighten the outside bolts on the rear crossbar. Leverage provided by a 6" long wrench is sufficient for proper tightening. Insert rubber plugs into holes in hulls. hole in the deck. Put some silicone sealant on your forefinger and reach through the hatch to put the sealant on the bolt where it enters the hull. Attach lock nut and flat washer to bolt inside hull using 1/2" box-end wrench. If you cannot reach the bolt, tape the nut to the wrench. Thread nut snugly to hull. Do not tighten until all bolts are snug. head screws...

 Open the catalog to page 4
Nacra prindle 15 16 18-5

Tie a figure eight knot in the end of side lac- ing line (1/8" X 11') and begin lacing side of trampoline beginning at forward slot. Lace line up through deck, through forward loop and back down through deck. Proceed aft and tie off end. Follow same procedure for other side of trampoline. Stand at the back of the boat and tighten lines by bracing your foot against the rear crossbar for leverage. Pull as tight as possi- ble. Tie off lines under trampoline. Do not trim excess line as this leaves something to hold when retightening tramp. Tighten each side by using a pair of pliers or vice grips....

 Open the catalog to page 5
Nacra prindle 15 16 18-6

Tie the block onto the side trampoline tab using a square knot. Use tab just forward of hatch for single trapeze and tabs just for- ward and aft of hatch for double trapeze. Slip tails of line under tab to hide and keep knot from loosening. Blocks should stand Lead shock cord through block, down through grommet by hatch and up through grommet and block on opposite side of tramp. Secure end until needed later. Attach a 3/16" shackle onto each jib bridle wire. Be sure pin handle is facing up so that it does not scratch trampoline. lead the other end through one set of double grommets at center...

 Open the catalog to page 6
Nacra prindle 15 16 18-7

Thread through blocks, through block, across tramp and through opposite jib block in opposite direction. Jib sheet should Hiking straps on trampoline are adjustable for personal comfort. People with long legs use the inboard look. Tie off onto a grom- RUDDER SYSTEM Open rudder box, it should contain: left and right rudder castings with tiller arms and complete workings installed and 2 rudder blades with lock pins attached. casting onto transom, make sure Prindle outboard side. Remove cotter from casting. with gudgeons Tiller Crossbar arms, remove tiller crossbar over tillers with bolt down through...

 Open the catalog to page 7
Nacra prindle 15 16 18-8

Remove lock- sion. Attach tiller crossbar locknut. Tiller poline easily. installed back- rudder cast- ings, untie bolt with lock- rudder blade between cast- Insert 1/4" bolt through casting and 1/4" hole in rudder blade. Replace locknut and tighten until rudder will just fall by itself. Do not overtighten as this will restrict rudder movement, to loose and rudder will be slop- py in casting. Thread downhaul and uphaul lines into rudder blade and tie off ends with a figure eight knot. Make sure the ends do not extend beyond the edge of the blade. Follow same procedure on both blades. Rudder Lock...

 Open the catalog to page 8
Nacra prindle 15 16 18-9

ders down. this measure- trailing edges. straight ahead. Measure from the centerline of the front edge of one rudder blade (22" up) to the centerline of the front edge of the other blade. Do the same with the trailing edges. If the distance between the trailing edges is greater than that of the front edges; length- en the tiller adjuster by unscrewing it. If the distance between the front edges is greater than that of the trailing edges; short- en the tiller adjuster by screwing it in. One complete turn is 1/16 of an inch. Attach adjuster end of tiller crossbar to tiller. Example: If the distance...

 Open the catalog to page 9
Nacra prindle 15 16 18-10

To lower rudder, release uphaul line from jam cleat and pull ball at end of downhaul line until lock bolt engages spring loaded pin in rudder casting. In operation if the rudder is pulled up too far, the head of the rudder blade will hit the washers at the top of the casting. This could chip your rudder blade. To prevent this, tie a knot in pull down line about 3" from ball. Adjust position of know so that the raised rudder stops just short of hitting the wash- Prindle 15s and 18s: Masthead is assembled before shipping. your masthead, halyard wire casting (side with curf). Align sheaves masthead...

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Nacra prindle 15 16 18-11

The adjustable forward bar can be length- ened or shortened to adjust the amount of "sweep back" the spreaders have. The more the spreaders are "swept back", the smoother the mast bend will be, even with tight diamond wires. However the more "swept back" the spreaders are the more they will get in the way of the jib while sail- ing. There is no "right" or "wrong" in the amount of "sweep back" - just personal pref- erence. Be sure both sides are adjusted to Diamond Wires turnbuckle studs should be started into same time. Place the diamond wire in the slot in the spreader tip with the nylon roller...

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