Protkarsh Kumar's video: YDM4 Diesel Locomotive Idling sounds - ALCo DL535A - Indian Railways Stereo Audio

Crystal clear idling sounds of YDM4 Locomotive from Izatnagar(IZN) shed. Loco number is 6761. Enjoy the stereo audio of the ALCo DL535A engine idling with compressor sounds. The class YDM4 is Indian Railways' metre gauge workhorse diesel locomotive. The first units were imported fully built from the American Locomotive Company (Alco) in 1961. Since 1968, it has been manufactured in India by the Banaras Locomotive Works (BLW), Varanasi. The model name stands for metre gauge (Y), diesel (D), mixed traffic (M) engine. The YDM4 has been the most successful diesel locomotive in the metre gauge operation of Indian Railways. The YDM4A is a variant of the YDM4 supplied by MLW. Originally equipped with vacuum brakes. Some were later equipped with dual brakes, particularly those working in the Northeast Frontier Railway were retrofitted with dual brake system by Lumding shed. The YDM4 locos have a maximum speed of 110 km/h (68mph), restricted to 85 km/h (53 mph). Manufacturers: ALCo, MLW, DLW Built from: 1961-1993 Total produced YDM4: 695 units Engine: ALCo 251-D, Inline-6 turbocharged engine. RPM range: 400-1100 Engine type: Inline-6 diesel Fuel type: Diesel Aspiration: Turbo-supercharged Transmission: Electric, DC-DC (DC Generator and DC Traction motor) Traction motors: GE for original Alco and MLW models, BHEL for DLW Bogies: ALCo design cast frame trimount (Co-Co) bogies with asymmetrical arrangement of traction motors. Length: 15.60 m (51 ft 2+1⁄8 in) Width: 2,730 mm (8 ft 11+1⁄2 in) Height: 3,635 mm (11 ft 11+1⁄8 in) Axle load: 12,000 kg (26,000 lb) Loco weight: 72,000 kg (159,000 lb) ALCo/DLW, 67,000 kg (148,000 lb) MLW Power output- Max:1,400 hp (1,000 kW) Site rated:1,300 hp (970 kW) Compression ratio 12.5:1. Numbers: 6020-6049 ALCo, 6105-6129 ALCo, 6130- 6198 MLW, 6199-6258 DLW, 6259-6288 MLW, 6289-6769 DLW