{"product_id":"athg-1031","title":"HO 4-6-6-4 Challenger Locomotive with Tsunami2 DCC \u0026 Sound, UP #3823 (ATHG-1031)","description":"\u003cdiv class=\"product_description\"\u003e\n\t\u003cp\u003eThis HO-scale Union Pacific Challenger locomotive reproduces ALCO’s iconic 4-6-6-4 design in the CSA-2 UP class, bringing a commanding UP-era presence to an HO layout. Equipped with a SoundTraxx Tsunami2 DCC sound decoder, it delivers authentic chuffs, whistles and bells for a lifelike run as it powers heavy freight—and, on some assignments, passenger trains—across UP routes such as the Wasatch grade from the 1940s onward.\u003c\/p\u003e\n\t\u003cp\u003eOn the rails, the model features illuminated number boards and headlights, tender-mounted sound with dual cube speakers, and current pickup on all wheels for steady operation. Pivoting front and rear engines help negotiate curves, with a minimum recommended radius of 22 inches. It runs on both DC and DCC, offers full DCC function support, and supports NMRA-compatible operation with CV-based tuning (a CV chart is included) for precise slow-speed control and easy multi-unit lashups.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Athearn Genesis (ATHG)","offers":[{"title":"Default Title","offer_id":47608443699252,"sku":"ATHG-1031","price":629.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/ATHG-1031.jpg?v=1774291405","url":"https:\/\/nankinhobby.com\/products\/athg-1031","provider":"Nankin Hobby","version":"1.0","type":"link"}