{"product_id":"20-22120-1-new-york-susquehanna-western-sd40t-2-tunnel-motor-3016-o","title":"20-22120-1 NEW YORK SUSQUEHANNA \u0026 WESTERN SD40T-2 TUNNEL MOTOR #3016-O","description":"\u003cp\u003eIn a normal diesel locomotive, cooling air for the radiators is taken in near the top of the car body. In a long tunnel, however, hot engine exhaust and heated air from the radiators collects at the top of the tunnel. This hot air is taken into the radiators and cannot cool the engine sufficiently. In a multiple-unit diesel lash up, the result is that trailing units may overheat and automatically shut down. In a worst-case situation, the extra load will cause the overworked lead units to fail and leave the crew stranded in the tunnel. Electro-Motive’s answer for the Southern Pacific was a modification of its SD45, with the air intakes moved lower on the engine so they could take in cooler air. Extra-large radiators were placed on the roof of the engine, with the fans located below them to blow cooler air up from below.\u003c\/p\u003e\n\u003cp\u003eThe first SD45T-2 Tunnel Motors were delivered in February 1972, and were among the first “Dash-2” versions of EMD’s muscular 20-cylinder, 3600 hp freighter. Responding to complaints of crankshaft and bearing failures on earlier SD45s, EMD had beefed up its model 645 diesel motor. Perhaps more important, the Dash-2 series’ introduction of solid-state electronics ushered in the third generation of diesel technology. Transistors and circuit boards replaced the massive switches, contacts, interlocks, and relays of earlier diesels, making possible a range of innovations that would make life easier for diesel engineers in coming years.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"max-w-screen-md\"\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eIntricately Detailed, Durable ABS Body\u003c\/li\u003e\n\u003cli\u003eDie-Cast Truck Sides, Pilots and Fuel Tank\u003c\/li\u003e\n\u003cli\u003eMetal Chassis\u003c\/li\u003e\n\u003cli\u003eMetal Handrails and Horn\u003c\/li\u003e\n\u003cli\u003eMoveable Roof Fans\u003c\/li\u003e\n\u003cli\u003eMetal Body Side Grilles\u003c\/li\u003e\n\u003cli\u003eDetachable Snow Plow\u003c\/li\u003e\n\u003cli\u003e(2) Hand painted Engineer Cab Figures\u003c\/li\u003e\n\u003cli\u003eAuthentic Paint Scheme\u003c\/li\u003e\n\u003cli\u003eMetal Wheels, Axles and Gears\u003c\/li\u003e\n\u003cli\u003e(2) Remote-Controlled Proto-Couplers\u003c\/li\u003e\n\u003cli\u003eO Scale Kadee Compatible Coupler Mounting Pads\u003c\/li\u003e\n\u003cli\u003ePrototypical Rule 17 Lighting\u003c\/li\u003e\n\u003cli\u003eDirectional Controlled Constant Voltage LED Headlights\u003c\/li\u003e\n\u003cli\u003eLighted LED Cab Interior Light\u003c\/li\u003e\n\u003cli\u003eIlluminated LED Number Boards\u003c\/li\u003e\n\u003cli\u003e(2) Precision Flywheel-Equipped Motors\u003c\/li\u003e\n\u003cli\u003eOperating ProtoSmoke Diesel Exhaust\u003c\/li\u003e\n\u003cli\u003eOnboard DCC\/DCS Decoder\u003c\/li\u003e\n\u003cli\u003eLocomotive Speed Control In Scale MPH Increments\u003c\/li\u003e\n\u003cli\u003eProto-Scale 3-2 3-Rail\/2-Rail Conversion Capable\u003c\/li\u003e\n\u003cli\u003e1:48 Scale Proportions\u003c\/li\u003e\n\u003cli\u003eProto-Sound 3.0 With The Digital Command System Featuring Quillable Horn With Freight Yard Proto-Effects\u003c\/li\u003e\n\u003cli\u003eUnit Measures: 18 5\/8\" 2 9\/16\" x 4\"\u003c\/li\u003e\n\u003cli\u003eOperates On O-42 Curves\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eDiesel \u003c\/strong\u003e\u003cstrong\u003eDCC Features:\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eF0 Head\/Tail light\u003c\/li\u003e\n\u003cli\u003eF1 Bell\u003c\/li\u003e\n\u003cli\u003eF2 Horn\u003c\/li\u003e\n\u003cli\u003eF3 Start-up\/Shut-down\u003c\/li\u003e\n\u003cli\u003eF4 PFA\u003c\/li\u003e\n\u003cli\u003eF5 Lights (except head\/tail)\u003c\/li\u003e\n\u003cli\u003eF6 Master Volume\u003c\/li\u003e\n\u003cli\u003eF7 Front Coupler\u003c\/li\u003e\n\u003cli\u003eF8 Rear Coupler\u003c\/li\u003e\n\u003cli\u003eF9 Forward Signal\u003c\/li\u003e\n\u003cli\u003eF10 Reverse Signal\u003c\/li\u003e\n\u003cli\u003eF11 Grade Crossing\u003c\/li\u003e\n\u003cli\u003eF12 Smoke On\/Off\u003c\/li\u003e\n\u003cli\u003eF13 Smoke Volume\u003c\/li\u003e\n\u003cli\u003eF14 Idle Sequence 3\u003c\/li\u003e\n\u003cli\u003eF15 Idle Sequence 2\u003c\/li\u003e\n\u003cli\u003eF16 Idle Sequence 1\u003c\/li\u003e\n\u003cli\u003eF17 Extended Start-up\u003c\/li\u003e\n\u003cli\u003eF18 Extended Shut-down\u003c\/li\u003e\n\u003cli\u003eF19 Rev Up\u003c\/li\u003e\n\u003cli\u003eF20 Rev Down\u003c\/li\u003e\n\u003cli\u003eF21 One Shot Doppler\u003c\/li\u003e\n\u003cli\u003eF22 Coupler Slack\u003c\/li\u003e\n\u003cli\u003eF23 Coupler Close\u003c\/li\u003e\n\u003cli\u003eF24 Single Horn Blast\u003c\/li\u003e\n\u003cli\u003eF25 Engine Sounds\u003c\/li\u003e\n\u003cli\u003eF26 Brake Sounds\u003c\/li\u003e\n\u003cli\u003eF27 Cab Chatter\u003c\/li\u003e\n\u003cli\u003eF28 Feature Reset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTH ELECTRIC TRAINS","offers":[{"title":"Default Title","offer_id":66965336752173,"sku":null,"price":599.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/6618\/7309\/files\/20-22120-1.jpg?v=1783004477","url":"https:\/\/jrjunction.com\/products\/20-22120-1-new-york-susquehanna-western-sd40t-2-tunnel-motor-3016-o","provider":"Jr Junction Train \u0026 Hobby","version":"1.0","type":"link"}