{"product_id":"atlas-531-ho-scale-code-83-15-radius-half-section-curved-track-4pcs","title":"Atlas 531 HO Scale Code 83 15\" Radius Half Section Curved Track - 4pcs","description":"\u003cp\u003eThe Atlas 531 is an HO Code 83 Snap Track 15-inch radius curved track \u003cstrong\u003ehalf section\u003c\/strong\u003e, four-pack — 15° arcs at the same 15-inch radius, for curve easements, fine length adjustment within a curve, and offset trimming where a full 30° section would overshoot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a half section matters.\u003c\/strong\u003e Curves drift centerline cumulatively as they bend — six full-section pieces sweep 180°, but real layouts rarely need exactly 180°. A 165° curve (5 full sections + 1 half), a 195° approach (6 full sections + 1 half), or a clean S-curve transition all need half sections to land geometry correctly. The 15° arc is also the right easement piece between a straight tangent and a tight 15\" curve, softening the snap into the curve and reducing wheel-flange squeal on long cars.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction.\u003c\/strong\u003e Code 83 nickel-silver rail, brown molded ties with #2540 nail holes, pre-fitted rail joiners. Matched exactly to the geometry of the full Atlas 530 sections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScale:\u003c\/strong\u003e HO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRail Code:\u003c\/strong\u003e Code 83 nickel-silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadius:\u003c\/strong\u003e 15\" (381 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArc:\u003c\/strong\u003e 15° per section (half of #530)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePieces per Pack:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTie Color:\u003c\/strong\u003e Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 531\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePairs Well With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAtlas 530\u003c\/strong\u003e — 15\" radius full section (6pc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAtlas 533\u003c\/strong\u003e — 18\" radius half section (4pc), same idea on wider curve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAtlas 534\u003c\/strong\u003e — 18\" radius 1\/3 section (4pc), 10° arc\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45097018720438,"sku":"150-531","price":7.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_7c9626a4-7da9-45db-816d-08a4ab29d5fb.jpg?v=1777515252","url":"https:\/\/oakvillemodeltrains.com\/products\/atlas-531-ho-scale-code-83-15-radius-half-section-curved-track-4pcs","provider":"Oakville Model Trains Depot","version":"1.0","type":"link"}