HR616 - FresnoSubber/Fresno-and-Co.-Trainbuild-Tomfuckery GitHub Wiki
Are you looking for an ALCo/MLW equivalent to what EMD and GE were coming up with in the 1980s (SD50, SD60, C36-7, C39-8, C40-8)? If the answer is yes, then this is the locomotive for you!
Marketing ploy aside, MLW (later Bombardier) and their Australian licensee, Comeng, were looking to shed themselves of their dependence on GE electrical gear on their locomotives. Comeng first looked to Mitsubishi Electric (yes, the same people who make air conditioning units as well as the inverters and other electronics in the most recent Progress Rail/EMD products such as the SD70ACe and its Tier 4 counterpart), fitted the last six of the New South Wales Government Railways 442 Class "Jumbos" and all fifty 80 Class diesel locomotives, along with ten 85 and fifty 86 Class electric locomotives with MELCO rotating equipment. They proved not up to the task in a diesel-electric application due to, ironically, electrical unreliability, and the search for another supplier ended with Hitachi, but unfortunately not a single diesel locomotive fitted with the venerable 251 engine was built using their electrical gear. The closest we ever got was the cancelled second order for 15 HR616s for CN, which BBD pushed hard to convince them to extend it to cover the engineering costs, but CN declined.
Thanks to the existence of the aforementioned 442 and 80 Class locomotives and the known fact that BBD looked to Hitachi for their ill-fated rotating equipment needs, we're able to piece together how an HR616 could've performed with rotating equipment that is NOT from General Electric.
RLC PT2 Specific Information
| General Info | - |
|---|---|
| Engine | ALCo 16-251E (1) |
| Power Output | 3,000hp (1) |
| Truck Type | Dofasco ZWT-3 Hi-Ad |
| Axles | 6 |
| Traction Motors | 6 |
| Minimum Weight | 379,800lbs |
| Maximum Weight | 420,000lbs |
| Model Base Speed | 62mph |
| Top Speed | 62mph, 65mph, 71mph, 81mph, 87mph |
| Electrical System | Hitachi |
|---|---|
| Alternator Max Current | 4,050A |
| Max Traction Motor (TM) Current | 1,350A |
| Max Continuous TM Current | 900A |
| Traction Motor Type | DC (HT HS15250A) |
| Factor Of Adhesion | 29% |
| Transition Mode | Fully Automatic |
| Transition Groups | 2, 2, 2 |
| Transition Shunts | 1, 0.75, 0.5 ⚠ |
| Alternator Transition | No |
| Traction Control | APR + Sand |
| Dynamic Braking (DB) Mode (if used) | Mechanically Driven Blowers @ 50% ⚠ |
| DB Max Current | 750A (2) |
| DB Max Continuous Current | 750A |
| Blended Braking | No |
| Electrical System | Mitsubishi Electric |
|---|---|
| Alternator Max Current | 3,000A (MELCO 2-B2-288P-01) |
| Max Traction Motor (TM) Current | 1,000A |
| Max Continuous TM Current | 610A |
| Traction Motor Type | DC (MELCO MB-451-BVR) |
| Factor Of Adhesion | 29% |
| Transition Mode | Fully Automatic |
| Transition Groups | 2, 2, 2 ⚠ |
| Transition Shunts | 1, 0.75, 0.5 ⚠ |
| Alternator Transition | No |
| Traction Control | APR + Sand |
| Dynamic Braking (DB) Mode (if used) | Mechanically Driven Blowers @ 50% ⚠ |
| DB Max Current | 550A (2) |
| DB Max Continuous Current | 550A |
| Blended Braking | No |
| Miscellaneous | - |
|---|---|
| Head End Power (HEP) | No |
| HEP Consumption | N/A |
| HEP Stand By/Run Mode | N/A |
| Load Ramp Speed | 1A/Tick |
| TM Overload Protection | No (3) |
| Starter Mode | Latched Prime, Manual Start |
| Air Brake Schedule | 26-L |
| Compressor CFM | 247.5cu-ft (WABCo 3CDC @ 1,100rpm) |
| Main Reservoir Volume | 35.9cu-ft |
Notes
1: The HR616 could be optioned with different engines and horsepower ratings depending on what was ordered. CN's units were built with the stock option which was the 16-251E rated at 3,000hp, but it was also offered with a 16-251F (3,600hp) or a 16-251+ (4,000hp) when that became available in 1984.
2: If extended range dynamic brakes are desired, max DB current is 800A for Hitachi equipped units and 620A for MELCO units.
3: Those equipped with Hitachi electrical gear would have Overload Protection.
⚠ Not verified or educated guess.