This is a Broadway Limited 7360 HO Scale Union Pacific 1989 - 2013 Excursion w/ Mars Light 4-8-4 Class FEF-3 Steam Locomotive Paragon4 Sound/DC/DCC, Smoke #844. It features: Accurately modeled FEF-2 double stack and triple stack - prototypically accurate for each road number, Accurately modeled turret casing, Individual side rods, Centipede-style oil tenders with finely detailed oil inserts. #844 has the Heritage Fleet containment dam, other road numbers do not, Options for Worthington and Sellers FWH, Wind Wings on models where prototypically accurate, Prototypically accurate FEF-2 front end and pilot (except #844), Walschaerts Valve Gear, & #844 as it ran from 1989-2013, with Mars Light.
主要特色與規格：
* 車身工藝：採用重型壓鑄金屬鍋爐、煤水車及底盤，配備細緻獨立的側杆、管線、黃銅鈴鐺 Centipede 式燃油煤水車，兼具重量感與高度還原度。
* Paragon4 聲光與發煙系統：搭載先進的 Paragon4 DCC/DC 雙模解碼器，支援高解析度原聲、同步動態發煙（Synchronized Puffing Smoke）、鳴笛處煙霧特效（Whistle Smoke）以及可調式氣笛與鐘聲。
* 動力性能：配備 5 級斜槽繞組馬達（5-Pole Can Motor）與精密驅動機構，具備 Back EMF 慢速控制技術，並內建電容組以優化在不完美軌道上的運轉平穩度。
這款模型完美結合了經典的 FEF-3 車體結構與極具特色的視覺塗裝，並具備頂級的動態聲光與發煙展演能力。
