{"product_id":"parallel-rule-captain-fields-600mm","title":"Parallel Rule – Captain Fields 600mm","description":"\u003ch2 data-start=\"0\" data-end=\"44\"\u003eParallel Rule — Captain Fields 600 mm\u003c\/h2\u003e\n\u003cp data-start=\"45\" data-end=\"133\"\u003e\u003cstrong data-start=\"45\" data-end=\"133\"\u003e📐 Extra-Long Precision • Professional Chart Navigation • Built for Serious Plotting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"135\" data-end=\"487\"\u003eThe \u003cstrong data-start=\"139\" data-end=\"178\"\u003eCaptain Fields 600 mm Parallel Rule\u003c\/strong\u003e is designed for navigators who want \u003cstrong data-start=\"215\" data-end=\"257\"\u003emaximum reach, stability, and accuracy\u003c\/strong\u003e when working on paper charts. With its extended length and precise parallel motion, this is a professional-grade instrument for skippers, instructors, and students who value traditional chartwork and dependable manual navigation.\u003c\/p\u003e\n\u003cp data-start=\"489\" data-end=\"687\"\u003eManufactured to exacting standards by \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eCaptain Fields\u003c\/span\u003e\u003c\/span\u003e, this 600 mm rule is ideal for large charts and long course transfers where shorter rules require multiple repositionings.\u003c\/p\u003e\n\u003chr data-start=\"689\" data-end=\"692\"\u003e\n\u003ch2 data-start=\"694\" data-end=\"747\"\u003e🧭 Why the 600 mm Parallel Rule Makes a Difference\u003c\/h2\u003e\n\u003ch3 data-start=\"749\" data-end=\"812\"\u003e📏 Extra-Long 600 mm Length — Fewer Moves, Greater Accuracy\u003c\/h3\u003e\n\u003cul data-start=\"813\" data-end=\"1040\"\u003e\n\u003cli data-start=\"813\" data-end=\"901\"\u003e\n\u003cp data-start=\"815\" data-end=\"901\"\u003e\u003cstrong data-start=\"815\" data-end=\"840\"\u003e600 mm working length\u003c\/strong\u003e spans a larger portion of standard and large-format charts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"902\" data-end=\"976\"\u003e\n\u003cp data-start=\"904\" data-end=\"976\"\u003eReduces the need for repeated repositioning when transferring bearings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"977\" data-end=\"1040\"\u003e\n\u003cp data-start=\"979\" data-end=\"1040\"\u003eImproves accuracy by minimising cumulative alignment errors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1042\" data-end=\"1126\"\u003eFor passage planning and offshore chartwork, the longer length is a clear advantage.\u003c\/p\u003e\n\u003chr data-start=\"1128\" data-end=\"1131\"\u003e\n\u003ch3 data-start=\"1133\" data-end=\"1182\"\u003e🔁 True Parallel Motion for Reliable Bearings\u003c\/h3\u003e\n\u003cul data-start=\"1183\" data-end=\"1448\"\u003e\n\u003cli data-start=\"1183\" data-end=\"1289\"\u003e\n\u003cp data-start=\"1185\" data-end=\"1289\"\u003ePrecision \u003cstrong data-start=\"1195\" data-end=\"1224\"\u003etwin-arm parallel linkage\u003c\/strong\u003e keeps the working edges perfectly parallel throughout movement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1290\" data-end=\"1371\"\u003e\n\u003cp data-start=\"1292\" data-end=\"1371\"\u003eAllows accurate transfer of bearings from the compass rose to the course line\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1372\" data-end=\"1448\"\u003e\n\u003cp data-start=\"1374\" data-end=\"1448\"\u003eMaintains alignment across multiple shifts—essential for safe navigation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1450\" data-end=\"1522\"\u003eThis consistency is what makes parallel rules a trusted navigation tool.\u003c\/p\u003e\n\u003chr data-start=\"1524\" data-end=\"1527\"\u003e\n\u003ch3 data-start=\"1529\" data-end=\"1578\"\u003e👁️ Clear Visibility \u0026amp; High-Contrast Markings\u003c\/h3\u003e\n\u003cul data-start=\"1579\" data-end=\"1778\"\u003e\n\u003cli data-start=\"1579\" data-end=\"1659\"\u003e\n\u003cp data-start=\"1581\" data-end=\"1659\"\u003e\u003cstrong data-start=\"1581\" data-end=\"1617\"\u003eTransparent acrylic construction\u003c\/strong\u003e keeps chart detail visible at all times\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1660\" data-end=\"1729\"\u003e\n\u003cp data-start=\"1662\" data-end=\"1729\"\u003eBold graduations and edge markings aid clean, confident line work\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1730\" data-end=\"1778\"\u003e\n\u003cp data-start=\"1732\" data-end=\"1778\"\u003eReduced parallax improves plotting precision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1780\" data-end=\"1834\"\u003eYou see exactly what you’re doing—nothing is obscured.\u003c\/p\u003e\n\u003chr data-start=\"1836\" data-end=\"1839\"\u003e\n\u003ch3 data-start=\"1841\" data-end=\"1868\"\u003e🛠️ Built for Daily Use\u003c\/h3\u003e\n\u003cul data-start=\"1869\" data-end=\"2088\"\u003e\n\u003cli data-start=\"1869\" data-end=\"1930\"\u003e\n\u003cp data-start=\"1871\" data-end=\"1930\"\u003eMade from \u003cstrong data-start=\"1881\" data-end=\"1907\"\u003erigid, durable acrylic\u003c\/strong\u003e that resists flexing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1931\" data-end=\"1999\"\u003e\n\u003cp data-start=\"1933\" data-end=\"1999\"\u003eSmooth, polished edges glide easily over charts without snagging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2000\" data-end=\"2088\"\u003e\n\u003cp data-start=\"2002\" data-end=\"2088\"\u003eDesigned to withstand repeated use in training rooms, chart tables, and nav stations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2090\" data-end=\"2147\"\u003eThis is a working instrument, not a disposable accessory.\u003c\/p\u003e\n\u003chr data-start=\"2149\" data-end=\"2152\"\u003e\n\u003ch2 data-start=\"2154\" data-end=\"2195\"\u003e⚓ Essential for Traditional Navigation\u003c\/h2\u003e\n\u003cp data-start=\"2196\" data-end=\"2264\"\u003eEven with modern electronics, parallel rules remain fundamental for:\u003c\/p\u003e\n\u003cul data-start=\"2265\" data-end=\"2429\"\u003e\n\u003cli data-start=\"2265\" data-end=\"2303\"\u003e\n\u003cp data-start=\"2267\" data-end=\"2303\"\u003ePassage planning and course checks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2304\" data-end=\"2338\"\u003e\n\u003cp data-start=\"2306\" data-end=\"2338\"\u003eTeaching navigation principles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2339\" data-end=\"2390\"\u003e\n\u003cp data-start=\"2341\" data-end=\"2390\"\u003eRedundant manual plotting when electronics fail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2391\" data-end=\"2429\"\u003e\n\u003cp data-start=\"2393\" data-end=\"2429\"\u003eMaintaining core seamanship skills\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2431\" data-end=\"2523\"\u003eThe 600 mm length is particularly valued in \u003cstrong data-start=\"2475\" data-end=\"2522\"\u003einstructional and professional environments\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"2525\" data-end=\"2528\"\u003e\n\u003ch2 data-start=\"2530\" data-end=\"2550\"\u003e📐 Specifications\u003c\/h2\u003e\n\u003cul data-start=\"2551\" data-end=\"2783\"\u003e\n\u003cli data-start=\"2551\" data-end=\"2576\"\u003e\n\u003cp data-start=\"2553\" data-end=\"2576\"\u003e📏 \u003cstrong data-start=\"2556\" data-end=\"2567\"\u003eLength:\u003c\/strong\u003e 600 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2577\" data-end=\"2616\"\u003e\n\u003cp data-start=\"2579\" data-end=\"2616\"\u003e📐 \u003cstrong data-start=\"2582\" data-end=\"2591\"\u003eType:\u003c\/strong\u003e Twin-arm parallel rule\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2617\" data-end=\"2672\"\u003e\n\u003cp data-start=\"2619\" data-end=\"2672\"\u003e🧭 \u003cstrong data-start=\"2622\" data-end=\"2635\"\u003eFunction:\u003c\/strong\u003e Bearing transfer \u0026amp; course plotting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2673\" data-end=\"2708\"\u003e\n\u003cp data-start=\"2675\" data-end=\"2708\"\u003e🛠️ \u003cstrong data-start=\"2679\" data-end=\"2692\"\u003eMaterial:\u003c\/strong\u003e Clear acrylic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2709\" data-end=\"2783\"\u003e\n\u003cp data-start=\"2711\" data-end=\"2783\"\u003e⚓ \u003cstrong data-start=\"2713\" data-end=\"2721\"\u003eUse:\u003c\/strong\u003e Nautical chart navigation, training, professional chartwork\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2785\" data-end=\"2788\"\u003e\n\u003ch2 data-start=\"2790\" data-end=\"2811\"\u003e🎯 Who This Is For\u003c\/h2\u003e\n\u003cul data-start=\"2812\" data-end=\"3189\"\u003e\n\u003cli data-start=\"2812\" data-end=\"2883\"\u003e\n\u003cp data-start=\"2814\" data-end=\"2883\"\u003e\u003cstrong data-start=\"2814\" data-end=\"2847\"\u003e⚓ Skippers \u0026amp; offshore sailors\u003c\/strong\u003e — long, accurate course transfers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2884\" data-end=\"2956\"\u003e\n\u003cp data-start=\"2886\" data-end=\"2956\"\u003e\u003cstrong data-start=\"2886\" data-end=\"2926\"\u003e🧭 Navigation instructors \u0026amp; students\u003c\/strong\u003e — classroom-ready precision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2957\" data-end=\"3037\"\u003e\n\u003cp data-start=\"2959\" data-end=\"3037\"\u003e\u003cstrong data-start=\"2959\" data-end=\"3000\"\u003e🚢 Commercial \u0026amp; professional mariners\u003c\/strong\u003e — dependable chart-table equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3038\" data-end=\"3113\"\u003e\n\u003cp data-start=\"3040\" data-end=\"3113\"\u003e\u003cstrong data-start=\"3040\" data-end=\"3070\"\u003e🗺️ Traditional navigators\u003c\/strong\u003e — those who value disciplined seamanship\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3114\" data-end=\"3189\"\u003e\n\u003cp data-start=\"3116\" data-end=\"3189\"\u003e\u003cstrong data-start=\"3116\" data-end=\"3143\"\u003e🎁 Maritime gift buyers\u003c\/strong\u003e — a practical, professional navigation tool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3191\" data-end=\"3194\"\u003e\n\u003ch2 data-start=\"3196\" data-end=\"3227\"\u003e⭐ Why Choose Captain Fields?\u003c\/h2\u003e\n\u003cp data-start=\"3228\" data-end=\"3436\"\u003eCaptain Fields navigation instruments are trusted for \u003cstrong data-start=\"3282\" data-end=\"3319\"\u003eclarity, accuracy, and durability\u003c\/strong\u003e. Designed for real chartwork, they support both learning and professional navigation with no unnecessary complexity.\u003c\/p\u003e\n\u003cp data-start=\"3438\" data-end=\"3559\"\u003eThe 600 mm Parallel Rule embodies that philosophy: \u003cstrong data-start=\"3489\" data-end=\"3558\"\u003elong reach, precise motion, and confidence in every line you draw\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"3561\" data-end=\"3564\"\u003e\n\u003ch3 data-start=\"3566\" data-end=\"3606\"\u003ePlot longer courses with fewer moves\u003c\/h3\u003e\n\u003cp data-start=\"3607\" data-end=\"3801\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAdd the \u003cstrong data-start=\"3615\" data-end=\"3654\"\u003eCaptain Fields 600 mm Parallel Rule\u003c\/strong\u003e to your chart kit and enjoy smoother, more accurate navigation on every chart.\u003cbr data-start=\"3733\" data-end=\"3736\"\u003e\u003cstrong data-start=\"3736\" data-end=\"3801\" data-is-last-node=\"\"\u003eAdd to cart and keep your chartwork precise and professional.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Mapworld","offers":[{"title":"Default Title","offer_id":47215470117056,"sku":null,"price":179.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0071\/5032\/files\/parallel-rule-500mm-1-e1746587220789.webp?v=1767783029","url":"https:\/\/www.mapworld.com.au\/products\/parallel-rule-captain-fields-600mm","provider":"Mapworld","version":"1.0","type":"link"}