CN U-1-f

Canadian National U-1-f

CN 6077, on display in Capreol, Ontario
Type and origin
Power type Steam
Builder Montreal Locomotive Works
Order number Q-401
Serial number 72757–72776
Build date October 1944 to January 1945
Total produced 20
Specifications
Configuration 4-8-2
UIC class 1′D0′
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Leading dia. 34 in (0.864 m)
Driver dia. 73 in (1.854 m)
Trailing dia. 43 in (1.092 m)
Wheelbase
  • Coupled: 19 ft 0 in (5.79 m)
  • Loco: 42 ft 2 in (12.85 m)
  • Loco & tender: 80 ft 10 3⁄4 in (24.66 m)
Length 90 ft 0 1⁄8 in (27.44 m)
Width 10 ft 9 in (3.28 m)
Height 15 ft 4 1⁄2 in (4.69 m)
Adhesive weight 236,950 pounds (107.48 tonnes; 105.78 long tons)
Loco weight 355,700 pounds (161.3 tonnes; 158.8 long tons)
Tender weight 281,840 pounds (127.84 tonnes)
Fuel type Originally coal, later oil
Tender cap
  • Coal: 18 tons coal, 11,700 gal water
  • Oil: 5,000 gal oil, 11,000 gal water
Firebox:
 • Firegrate area		 70.2 sq ft (6.52 m2)
Boiler pressure 260 lbf/in2 (1.79 MPa)
Heating surface 3,584 sq ft (333.0 m2)
 • Tubes and flues 3,198 sq ft (297.1 m2)
 • Firebox 386 square feet (35.9 m2)
Superheater:
 ​
 • Type Schmidt type E
 • Heating area 1,570 sq ft (146 m2)
Cylinders Two, outside
Cylinder size 24 in × 30 in (610 mm × 762 mm)
Valve gear Walschaerts
Train heating Steam heat
Performance figures
Tractive effort 52% (52,315 lbf or 232.7 kN)
Factor of adh. 4.5
Career
Operators Canadian National Railways
Class U-1-f
Numbers 6060–6079
Retired 1960
Preserved Three: 6060, 6069, 6077
Disposition Three preserved, remainder scrapped.

Canadian National Railways U-1-f class locomotives, were a class of twenty 4-8-2 or Mountain type locomotives built by Montreal Locomotive Works in 1944. They were numbered 6060–6079 by CN and nicknamed “Bullet Nose Bettys” due to their distinctive cone-shape smokebox door cover.

Construction history

The order for these engines came during World War II when steel was of extreme value. The mountain type locomotive was a step down in size from the much more prevalent Northern Type (4-8-4). As a result of the step down in size the mountain type had less power but more speed and served well as a general purpose workhorse.

Modifications

Half the class had been converted to oil-firing by October 1944. This resulted in the 18-ton coal/11,700-gallon tender being exchanged for a 5,000-gallon oil/11,000-gallon water tender. In later years several locomotives lost the distinctive cone-shaped smokebox door cover.

Preservation

Of the twenty locomotives that were built, only three remain in existence: 6060 owned by the Rocky Mountain Rail Society at the Alberta Prairie Railway, Stettler, Alberta; 6069 at Sarnia, Ontario; and 6077 at the Northern Ontario Railroad Museum, at Capreol, Ontario.

Efforts have begun to restore engine 6069.

6060's restoration and run to Expo 86

In 1985 through to early 1986, a man named Harry Home led efforts to restore CN #6060 and run it to Expo 86 in Vancouver. #6060 was rebuilt in Jasper, Alberta, and was run under its own power to Vancouver for the "Cavalcade of Steam", an event which celebrated operational steam locomotives from around the world. 6060 arrived in Vancouver on the second to last day of the steam exhibit, and was welcomed by an extremely large crowd of people, happy to see the success of the restoration.

References


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