{"id":386,"date":"2012-02-13T08:10:45","date_gmt":"2012-02-13T08:10:45","guid":{"rendered":"http:\/\/yachtsinthailand.com\/?page_id=386"},"modified":"2012-11-07T02:02:39","modified_gmt":"2012-11-07T02:02:39","slug":"platu-rig-tuning","status":"publish","type":"page","link":"https:\/\/www.yachtsinthailand.com\/?page_id=386","title":{"rendered":"Rig Tuning"},"content":{"rendered":"

PLATU RIG TUNING.<\/strong><\/p>\n

WITH THE BOOM OFF OR AT LEAST UNWEIGHTED AND NO CHOCKS<\/p>\n

1\/ Set forestay length (your own top secret measurement).<\/p>\n

2\/ Centre the rig using V’s (D 2s hand tight and mast straight) and the jib
\nhalyard, marked and pulled down to alternate gunwales to ensure the rig is
\nvertical and not off to one side.<\/p>\n

3\/ Hand tighten D 1’s and connect the backstay.<\/p>\n

4\/\u00a0Now you can start tuning\u00a0 by tensioning the V’s a half, one or two turns at a time, first one side and then the other.<\/p>\n

5\/ When the V’s are reading just under your desired magic tension you can start
\nto work on your prebend by tensioning D 1’s one turn at a time, side to side.
\nThis will take your V’s up closer to your magic number.<\/p>\n

6\/ Keep checking the rig tension.<\/p>\n

7\/ Pull on backstay to check mast bend. If there’s too much in the second panel
\nof the mast then tighten the D 2’s one or 1\/2 turn at a time side to side.<\/p>\n

CHOCKS\u00a0 \u00a0Use the chocks to artificially alter the natural bend induced by your rig tensioning\/tuning. An example of this is possibly chocking behind the mast in very light conditions to help in easing the mainsail leech \/ flattening the main, or alternately chocking in front of the mast to reduce bend when power is required in light\/moderate and choppy conditions. Experiment to see what works for you.<\/p>\n

In lighter winds<\/span><\/strong> you want to be able to keep some fullness
\n(not too much) with very little leach tension<\/span> and light forestay tension
\n(this is why you set up the prebend.)<\/p>\n

Medium winds<\/span><\/strong> (up to fully powered up) you need to have enough mast bend to get
\nmaximum drive from top to bottom on the Main and medium forestay tension for pointing
\nability<\/span>.<\/p>\n

In slightly overpowered conditions<\/span><\/strong> you need to bend the upper mast and flatten and depower the top of the main until the boat is balanced.<\/p>\n

You pull the rig forwards if possible when sailing downwind but don\u2019t let it distract from
\nthe more important issues of trim and tactics. It is good to not let the mast jump around in waves as this stops the wind from attaching to the sails and will slow the boat . Better to have tension in the backstay.<\/p>\n

Note\u2026 Fit elastic \u2018preventers\u2019 to stop the kite being trapped in corners where shrouds meet shrouds or mast.<\/p>\n

Loos gauge settings for a PLATU<\/strong><\/p>\n

Wind speed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 V\u2019s\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D1\u2019s\u00a0\u00a0\u00a0\u00a0\u00a0 turns\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 turns<\/p>\n

0 to 5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -1.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -1.0<\/p>\n

6 to 8 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a011\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0<\/p>\n

8 to 10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 11\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.5<\/p>\n

10 to 12\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 15\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.0<\/p>\n

12 to 14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a016\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.5<\/p>\n

14 to 16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a019\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.0<\/p>\n

16 to 18\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 19 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a03.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.5<\/p>\n

18 to 20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 21 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.0<\/p>\n

20 to 22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.5<\/p>\n

22 plus\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 23\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 23\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.0<\/p>\n

For Pattaya we use 6 to 8 knots as the base setting. Use the above
\nfigures to adjust for wind changes from the base setting.<\/p>\n

Remember, clockwise turns reduce tension.<\/strong>
\nD2,s can be set with minimum tension and for club racing can then be left alone.<\/p>\n

Enjoy your racing and have fun.<\/p>\n

Thanks to Gary Baguley and John Weston for help with input to the above.<\/p>\n

Ferret News February 2012<\/p>\n

Kev Scott<\/p>\n","protected":false},"excerpt":{"rendered":"

PLATU RIG TUNING. WITH THE BOOM OFF OR AT LEAST UNWEIGHTED AND NO CHOCKS 1\/ Set forestay length (your own top secret measurement). 2\/ Centre the rig using V’s (D 2s hand tight and mast straight) and the jib halyard, … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-386","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/pages\/386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=386"}],"version-history":[{"count":4,"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/pages\/386\/revisions"}],"predecessor-version":[{"id":791,"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=\/wp\/v2\/pages\/386\/revisions\/791"}],"wp:attachment":[{"href":"https:\/\/www.yachtsinthailand.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}