{"id":14526,"date":"2026-10-28T16:02:09","date_gmt":"2026-10-28T08:02:09","guid":{"rendered":"https:\/\/winrailway.com\/product\/marklin-039913-us-challenger-steam-loco-up\/"},"modified":"2026-10-28T16:02:09","modified_gmt":"2026-10-28T08:02:09","slug":"marklin-039913-us-challenger-steam-loco-up","status":"publish","type":"product","link":"https:\/\/winrailway.com\/zh\/product\/marklin-039913-us-challenger-steam-loco-up\/","title":{"rendered":"M\u00e4rklin 039913 \u2014 US Challenger Steam Loco, UP"},"content":{"rendered":"<h2>M\u00e4rklin 039913 \u2014 US Challenger Steam Loco, UP<\/h2>\n<p>The Union Pacific Railroad&#8217;s 4-6-6-4 Challenger class represents a pinnacle of American articulated steam locomotive design. Developed in the mid-1930s by the American Locomotive Company (ALCO) under the direction of UP&#8217;s research department, these locomotives were engineered for high-speed freight service across the demanding grades of the Wasatch Mountains and Sherman Hill. Operating primarily during Era III, the Challenger utilized a Mallet-style articulated frame that allowed the massive boiler to traverse tight curves while distributing its immense weight across twelve driving wheels. This design offered a versatile balance of tractive effort and speed, making it one of the most successful heavy-power steam designs in North American railroading history.<\/p>\n<p>This M\u00e4rklin H0 scale model (SKU 039913) features a heavy-duty chassis and boiler constructed primarily of die-cast metal for superior traction and durability. The locomotive is equipped with an mfx+ digital decoder, providing a vast array of synchronized sound functions and advanced operating modes compatible with the Central Station 3 system. The articulated frame is specifically engineered to negotiate curves as tight as the R1 radius (360 mm). Interior technical highlights include a high-efficiency propulsion system with a flywheel, drive on six axles, and factory-installed traction tires. The model features LED directional lighting, a smoke generator contact for retrofitting, and NEM coupler pockets with a close-coupling mechanism between the engine and the multi-axle tender.<\/p>\n<h3>Product Specifications:<\/h3>\n<ul>\n<li><strong>Manufacturer:<\/strong> M\u00e4rklin<\/li>\n<li><strong>Item Number:<\/strong> 039913<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>M\u00e4rklin 039913 \u70ba Union Pacific 4-6-6-4 Challenger \u91cd\u578b\u84b8\u6c7d\u6a5f\u8eca\uff0cHO \u6bd4\u4f8b\u5168\u91d1\u5c6c\u8eca\u9ad4\u914d\u5099 mfx+ \u6578\u4f4d\u97f3\u6548\u89e3\u78bc\u5668\uff0c\u7cbe\u6e96\u9084\u539f\u7f8e\u570b Era III \u9435\u9053\u52d5\u529b\u50b3\u5947\u3002<\/p>","protected":false},"featured_media":14524,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[204,326],"product_tag":[430,433,432,169,167,431,429,428],"class_list":["post-14526","product","type-product","status-publish","has-post-thumbnail","product_cat-all-products","product_cat-ho-scale-locomotives","product_tag-430","product_tag-4-6-6-4","product_tag-challenger","product_tag-ho-scale","product_tag-marklin","product_tag-union-pacific","product_tag-up","product_tag-us","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/product\/14526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/comments?post=14526"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/media\/14524"}],"wp:attachment":[{"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/media?parent=14526"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/product_brand?post=14526"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/product_cat?post=14526"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/winrailway.com\/zh\/wp-json\/wp\/v2\/product_tag?post=14526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}