| Bombardier HR-412 | |
| Powertype: | Diesel-electric |
| Builder: | Bombardier |
| Serialnumber: | M6115-01 to M6115-10 |
| Buildmodel: | HR-412 |
| Builddate: | September 1981–May 1982 |
| Totalproduction: | 11 |
| Aarwheels: | B-B |
| Uicclass: | Bo′Bo′ |
| Wheeldiameter: | 40inches |
| Minimumcurve: | 30° |
| Wheelbase: | Between truck centers: 47feet Truck wheelbase: 9feet |
| Length: | 61inchesft0inchesin (ftin) |
| Width: | 10inchesft5inchesin (ftin) |
| Height: | Cab roof: 14feet Overall: 15feet |
| Locoweight: | 272000lb or 136ST |
| Fueltype: | Diesel |
| Fuelcap: | 2000usgal |
| Lubecap: | 160usgal |
| Coolantcap: | 200usgal |
| Sandcap: | 56cuft |
| Primemover: | Alco 251C |
| Rpmrange: | 450 - 1050 |
| Enginetype: | V12 4-stroke diesel |
| Aspiration: | Mechanically-assisted turbocharger |
| Generator: | GE GTA17 |
| Cylindercount: | 12 |
| Cylindersize: | 9inches diameter × NaNinches stroke |
| Maxspeed: | 67mph |
| Poweroutput: | 2400hp |
| Tractiveeffort: | 600000NaN0 |
| Locobrakes: | Straight air, Dynamic |
| Trainbrakes: | 26-L air |
| Operator: | Canadian National Railway |
| Operatorclass: | MR-20d |
| Fleetnumbers: | 2580-2589 (later 3580-3589) |
| Locale: | North America |
The Bombardier HR-412, also known as the MLW HR-412, was a 4 axle, 2400hp freight locomotive manufactured in Montreal, Quebec, Canada. Ten were built for Canadian National Railway in between September and November 1981, numbered 2580–2589, and one was built for Bombardier as a demonstrator in May 1982, numbered BBD 7000. BBD 7000 was later sold to Canadian National.[1]
The model designation stood for HR - High Reliability, 412 - 4 axles, 12 cylinder engine. The HR-412 was designed as the successor to the MLW M-420.