Trucks: B-B Flexicoil
Engine: 12-567C, 1,200 hp
Gear ratio: As built 58:19, modified to 52:15
Maximum speed: As built 89 mph, modified to 65 mph
Operating weight (lbs.): 246,350
Tractive effort (lbs.): As built 30,000, modified to 40,000
Length: 54′ – 9″
These units were equipped with steam generators as built, they were later removed. Originally classed as GRG-12n they were reclassed as GR-12n when their steam generators were removed and their gearing was modified.
Order no.: C-245, C-254
| Number | Class | Built Date | Builder’s Number | Second number | Renumbered | Retired | Notes |
|---|---|---|---|---|---|---|---|
| 1900 | GR-12n | Sep 58 | A1449 | Dec 18 97 | To Midwestern Rail Association (Winnipeg MB) 1999 | ||
| 1901 | GR-12n | Nov 58 | A1575 | Dec 18 97 | To National Railway Equipment (Silvis IL) 1998 leased to Algoma Steel, Sault Ste Marie ON, Mar 00 moved to the NRE shop in Capreol ON, 2001 | ||
| 1902 | GR-12n | Nov 58 | A1576 | Feb 20 96 | To Southern Marine (Greenville MS) To Ryder 1002 (Mexico) | ||
| 1903 | GR-12n | Nov 58 | A1577 | Dec 4 95 | Disposition unknown | ||
| 1904 | GR-12n | Nov 58 | A1578 | Dec 18 97 | To Southern Marine Equipment (Greenville MS) Moved to CLN Industries (Capreol ON), painted here in 1999 as RDMX 1002, white with Ryder markings, sent to Mexico | ||
| 1905 | GR-12n | Nov 58 | A1579 | Dec 18 97 | To National Railway Equipment (Silvis IL) | ||
| 1906 | GR-12n | Nov 58 | A1580 | Dec 14 84 | To National Railway Equipment (Silvis IL) | ||
| 1907 | GR-12n | Nov 58 | A1581 | Dec 19 97 | To National Railway Equipment (Silvis IL) | ||
| 1908 | GR-12n | Nov 58 | A1582 | Sep 17 96 | Retired due to fire damage Disposition unknown | ||
| 1909 | GR-12n | Nov 58 | A1583 | Dec 4 95 | Disposition unknown | ||
| 1910 | GR-12n | Nov 58 | A1584 | Dec 18 97 | To Southern Marine Equipment (Greenville MS) Moved to CLN Industries (Capreol ON) Leased to INCO (Copper Cliff ON) until Apr 01 | ||
| 1911 | GR-12n | 58 | A1585 | Oct 22 97 | Stored unserviceable due to frost damage Jan 97 | ||
| 1912 | GR-12n | Dec 58 | A1586 | Dec 4 95 | Disposition unknown | ||
| 1913 | GR-12n | Dec 58 | A1587 | 1402 | Mar 7 89 | ||
| 1914 | GR-12n | Dec 58 | A1588 | May 23 95 | Disposition unknown | ||
| 1915 | GR-12n | A1589 | Dec 18 1997 | To National Railway Equipment (Silvis IL) | |||
| 1916 | GR-12n | Dec 58 | A1590 | 1401 | Feb 21 89 | ||
| 1917 | GR-12n | Jan 59 | A1591 | 1400 | Feb 15 89 |