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LaserPerformance Zuma Rigging Manual

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Summary of Contents for LaserPerformance Zuma

  • Page 1 To avoid damaging contents, do not cut into packaging. a. Hull b. Mast kit which includes: Top section Tools: To rig your Zuma the fi rst Bottom section (larger diameter) time, you will need the following: Boom (with blocks attached) •...
  • Page 2 2. Assembly Vang Sail assembly Th e vang system consists of two blocks and a line. Th e block After checking that there are no sharp objects in the area, lay with a shackle attaches to the eyestrap on the underside of out the sail near the boat.
  • Page 3 3. Launching Before Launching Lock the rudder up and attach it to the boat by passing the tiller under the traveler and lining up the rudder pin with the pin- tles. Th e bottom groove should fi t into the bottom pintle, and when you push down on the spring-loaded pin, the top groove will slide into the top pintle.

Page 4: Maintenance

  • Page 5 Laser, SB3, Sunfi sh, and Dart Dubai, UAE are trademarks used under license. +971 (4) 885 7601 LaserPerformance reserves the right to make design and/or specifi cation changes to any of their products as part of their continuous LASER PER FOR MANCE.COM development program.

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Zuma rigging diagram

  • Thread starter DDecker
  • Start date Jul 24, 2012
  • Brand-Specific Forums

Hi! Does anyone know where we can get a rigging diagram for our 1987 Zuma 12' sailboat? Any help would be greatly appreciated....  

Look at the pictures in this site..... the sail has a sleeve that slides over the mast.... a downhaul holds the sail in position. http://sailingtexas.com/szumae.html  

Thanks Victory! Your photos were very helpful. We look forward to sailing our Zuma on Lake Winnipesaukee in New Hampshire next week...  

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  • Sailboat Guide

Zuma is a 12 ′ 9 ″ / 3.9 m monohull sailboat designed by Gary Grossman/Steve Nichols and built by AMF Corp. and Pearson Yachts starting in 1984.

Drawing of Zuma

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

  • SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

  • D: Displacement of the boat in pounds
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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Zuma



Vanguard Zuma



The URL for this page is

Zuma Added 26-Nov-2023




rigging zuma sailboat

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  • Yachting Monthly
  • Digital edition

Yachting Monthly cover

How to tension your yacht’s rig with wire or rod rigging

  • August 28, 2024

Ivar Dedekam author of Illustrated Sail & Rig Tuning gives his guide on tensioning a yacht's wire or rod rigging

rigging zuma sailboat

If you want to trim your rig correctly you should have some idea of the tension in the shrouds and stays, either by rules of thumb or a more exact method, such as this. Here, you measure the stretch of the wire as a percentage and then establish the tension as a percentage of the wire or rod’s breaking load.

You can either measure the stretch of all the wire or a part of it, e.g. 2m. Accuracy will improve with the sample length. Begin with a minimum tension in the wire.

Mark off a 2m length of the shroud on one side of the boat using the shroud terminal for reference. Measure the elastic extension (f) of the measured length as the rigging screws are alternately tightened, little by little. Stop when f = 3mm. (4mm on fractional rigs with aft swept spreaders).

Note that stretch of f = 1mm over a sample of 2m of the wire corresponds to 5% of breaking load independent of the wire diameter. For rod, an f = 1mm stretch over 2m corresponds to 7.5% of breaking load. Use a similar method to establish backstay tension. Remember that a different sample length will have a different stretch for the same load. Also remember that the stretch is always measured from hand tight wire/rod (minimum tension).

rigging zuma sailboat

Mark up the shroud Mark up 2m of shroud using the terminal for reference…

Rod rigging is made of a straight, single strand. Wire rigging is made of many twisted strands. Normally rod rigging is 20% stronger than wire of the same diameter.

Wire has the advantage of an early warning of fatigue when a strand breaks. Fatigue in rod happens without any warning at all. It can be sudden and sometimes catastrophic.

Tensioning cap shrouds

When you have straightened the mast sideways and adjusted the rake, it is time to look at the cap shrouds. Tighten the cap shrouds to approximately 15% of breaking load. This corresponds to a stretch (f) of 3mm over a length of 200cm. On a fractional rig with aft swept spreaders the cap shrouds should be tensioned to 20% of the breaking load. This corresponds to a stretch of f = 4mm.

rigging zuma sailboat

Measure the stretch…then measure the elastic extension when the rigging has been tightened.

To avoid excessive forestay sag upwind, the cap shrouds should be relatively highly tensioned. If 20% cap shroud tension is not sufficient to keep sag at an acceptable level, increase the tension to 25% of breaking load. Do not exceed this tension.

Slack rigging will produce shock loads that can cause rig failure and may even bring the mast down. Note that you will not be able to overtighten a wire of 40-50cm length with hand tools. The lower shrouds and intermediate shrouds should be quite loose at this stage.

If the mast has distinct bends you should try to straighten them by sight and hand tensioning.

Many yachtsmen intuitively tension their standing rigging and adjust it later when sailing has begun. This may lead to acceptable results but the methods described above, while taking some time, are more certain and reliable.

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IMAGES

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COMMENTS

  1. VANGUARD ZUMA RIGGING MANUAL Pdf Download

    Summary of Contents for Vanguard ZUMA. Page 1 Vanguard Sailboats 300 Highpoint Avenue Portsmouth, RI 02871 For the dealer nearest you call 800.966. SAIL... Page 2 4. Block package which includes: Mainsheet block Double traveler block Vang block with vcleat Small vang block with becket Shackle To rig your Zuma the first time, you will need the ...

  2. How to rig up a Zuma sailboat

    In this video I show how to rig up a Zuma sailboat.

  3. LASERPERFORMANCE ZUMA RIGGING MANUAL Pdf Download

    Summary of Contents for LaserPerformance Zuma. Page 1 To avoid damaging contents, do not cut into packaging. a. Hull b. Mast kit which includes: Top section Tools: To rig your Zuma the fi rst Bottom section (larger diameter) time, you will need the following: Boom (with blocks attached) •... Page 2 2. Assembly Vang Sail assembly Th e vang ...

  4. Zuma rigging diagram

    Jul 31, 2012. #3. Thanks Victory! Your photos were very helpful. We look forward to sailing our Zuma on Lake Winnipesaukee in New Hampshire next week... Hi! Does anyone know where we can get a rigging diagram for our 1987 Zuma 12' sailboat? Any help would be greatly appreciated....

  5. PDF 1. Unpacking and preparation

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  6. PDF LaserPerformance For the dealer nearest you call 800.966

    Place the mast butt against a solid object, lift the top end, and walk toward the butt, raising it hand over hand until the mast stands vertical. Rotate the mast until the gooseneck (the metal post about two feet above the butt) points toward the stern. Keep your hands a good distance apart while lifting the mast over the hole.

  7. Zuma?

    The 1988 Alcort Zuma Standard sailboat has a fiberglass hull and has an overall length of 12.92 feet. The width (or beam) of this craft is 51 inches. ... I have a Zuma with a full laser rig and new MK2 sail and an old 1974Sunfish with a new race sail and the Sunfish will run circles around the Zuma. The Sunfish is also easier to sail in both ...

  8. New to sailing & just got a used Zuma. Need help with setup

    Hi everyone! Apologies in advance for the stupid questions. I got a used Zuma (guessing it is from the 80s) and it's in pretty good shape, only issue is the cleat on the mast is broken (pics attached). I know NOTHING about sailing but I'm trying to learn. Wondering if anyone can point me in the right direction of tutorials to properly ...

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  10. Zuma

    Zuma is a 12′ 9″ / 3.9 m monohull sailboat designed by Gary Grossman/Steve Nichols and built by AMF Corp. and Pearson Yachts starting in 1984. ... Zuma. 1984. Zuma is a 12 ... Rig and Sails. Type Cat

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  14. Has anyone stuck a full size Laser rig in a Zuma?

    I've got some health issues going on and being able to "bathtub sail" the Zuma (think how most adults sail in an Opti after dinner with a beer in one hand and limbs hanging out all 4 sides of the boat) hull is moderately possible for me while a Laser hull is just impossible. I see a fair amount of criticism of the Zuma on here.

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    It takes into consideration "reported" sail area, displacement and length at waterline. The higher the number the faster speed prediction for the boat. A cat with a number 0.6 is likely to sail 6kts in 10kts wind, a cat with a number of 0.7 is likely to sail at 7kts in 10kts wind. KSP = (Lwl*SA÷D)^0.5*0.5

  16. Zuma

    Call us: 800-459-3886 toll free Email Us: [email protected] International phone number: +1 860-399-2276 Address: 12 Hammock Road South Westbrook, CT 06498 United States. Hours of Operation: 9:00 AM - 5:00 PM (EST) Monday - Friday

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  18. Zuma

    The sail type is quite a bit different - the Sailfish sail is a lateen rig, with two spars, and the lower spar normally has a gooseneck that connects to the mast. I'm honestly not sure if the Zuma mast would fit into that gooseneck. I'd probably look into selling the Sailfish rig and finding a used Zuma sail, or just buy the new one from Intensity.

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  22. How to tension your yacht's rig with wire or rod rigging

    Rod rigging is made of a straight, single strand. Wire rigging is made of many twisted strands. Normally rod rigging is 20% stronger than wire of the same diameter. Wire has the advantage of an early warning of fatigue when a strand breaks. Fatigue in rod happens without any warning at all. It can be sudden and sometimes catastrophic.

  23. Small Sailboat Parts

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