Canadian Pacific 2-8-2 "Mikado" Locomotives in Canada

Ringaboy: Retro Railware

Modern fabrics meet classic heritage looks. Unique & comfortable retro rail logo shirts & tops for ladies & men. Featuring crew, flowy, hoodies, long sleeve, scoop, slouchy, tank, thermal & V-neck styles. Custom & bulk inquiries welcome.

Class Details by Steve Llanso of Sweat House Media

Class P1a/b (Locobase 3086)

Data from "Mikados on the Canadian Pacific", Railway Age Gazette, Vol 56, No 14 (3 April 1914), pp. 779-781

These engines were used for slow and fast freight as well as for passenger service between Sherbrooke and Megantic (PQ). The Sherbrooke-Megantic section had a maximum eastbound grade of 1.72% over which the 10-car passenger trains had frequently to be double-headed by the CP's Pacifics. According to Railway Age of 3 April 1914: "The Mikados have obviated the necessity for two engines, and under the most extreme climatic conditions are doing excellent work."

RA highlighted the wedge truck, which substituted inclined wedges for the more usual swing links. Also singled out was a casting that combined the back steam chest cover and the crosshead guide. These engines also had a vestibule cab.

The first 20 (P1a) delivered by Canadian Pacific, the latter 75 came from Montreal Loco Works as P1b. These engines were redesignated P-1d & e and renumbered 5100-5194 in 1926-1930 when the original superheater installation was replaced by a Schmidt Type A; see Locobase 4524.

Retirements began in 1957 and the last engine had left by 1964.


Class P1d/e (Locobase 4524)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

Conversions of twenty P1a to P1d (5100-5119) and 75 P1b to P1e (5120-5194). (The original locomotives are described in Locobase 3086.

The principal difference was in the substitution of a Schmidt-design superheater in place of the home-grown Vaughan-Horsey design originally installed. Also, the firebox heating surface now included 26 sq ft (2.4 sq m) of arch tubes. All had Elesco feed water heaters installed at the same time.


Class P1n (Locobase 4523)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. (Thanks to Chris Hohl for his 10 May 2013 email identifying the valve gear.)

Converted from N2 2-8-0s (Locobase 4525). The firebox heating surface included 26 sq ft (2.42 sq m) of arch tubes, but the chief difference between the N2 and the P1n was the much longer tube length. This enlarged the boiler's steaming capacity and ameliorated the pinched capacity that was a source of complaint by N2 engineers.


Class P2a/b/c (Locobase 407)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

Series of CP Mikes that were enlargements of the P1a/b engines (Locobase 3086). They had larger-diameter cylinders, bigger grates, and higher boiler pressure. As usual, weight grew as the locomotives were reboilered. In the 1947 book, the P2 appeared in two forms; this version had less superheat surface and thus more evaporative surface. The later P2d had a different balance; see Locobase 9440.


Class P2d (Locobase 9440)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

This represents the later version of the P2a/d (Locobase 407), a class that came into service in the mid-1920s. Sacrificing about 45 small tubes for three flues, the design achieved a hotter-steaming boiler at the cost of about 4 tons (3,628 kg) greater weight.


Class P2e/f (Locobase 5050)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

The first of the P-2s made their appearance in 1919 as part of a major power upgrade on the CP. The design represented a significant enlargement of the P-1 and was big and spry enough to serve passenger as well as freight trains.

The P-2e/f came along 7 years later. Boiler had feedwater heater and 32 2" tubes. See P2h (Locobase 3) for last variant in series.

A series of reminiscences published by W. Bill Young in "The Fraser Canyon Express" ("North Bend Recollections", accessed from http://members.tripod.com/canyon_express/id67.htm on 15 Sept 2007) includes a description of railroad activity in North Bend the 1930s. North Bend is a community near the US-Canadian border, northeast of Vancouver, and lying on the west bank of the Fraser River.

Young quotes from Ernie Ottewell, Canadian Pacific and Canadian National in the Interior of British Columbia. (Calgary: BRMNA, c1996).

About the P-2 in that region, Ottewell notes: "A 5300 Class P2 2-8-2 could handle about 4,500 tons from Coquitlam to Ruby Creek, where the train would be split and the road crew would take one half of the train through to North Bend."

Another memoir, published by Bill Yeats (CANADIAN PACIFIC RAILWAY 5326) on the West Coast Railway Association's website http://www.wcra.org/features/5326.htm,(accessed 15 Sept 2007) notes of the entire class: "These were very popular mainline freight locomotives, and 162 of this class were built between 1919 and 1944. They hauled freight trains at all points in Canada except for Vancouver Island and some light rail branch lines such as the Kettle Valley. They were also used extensively in pusher service in places like North Bend and the Field Hill. The only places that I recall them being used regularly in passenger service was on the CPR's summer train "The Mountaineer", which connected with their Soo Line and operated between Vancouver and Chicago. The trip between Field, BC and Calgary, Alberta of this train was handled by P2Æs."


Class P2h, j (Locobase 3)

Data from CP 1947 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange and 1947 Locomotive Cyclopedia tables. P2h (5417-5436) supplied by Canadian Locomotive Company (works numbers were 2022-2025 in April 1943, 2026-2029 in May, 2030-2032 in June, 2033-2035 in July, 2036-2041 in September). P2j (5437-5461) produced by Montreal Locomotive Works (works numbers 71635-71637 in May 1944, 71638-71645 in June, 71646-71651 in July, 71652-71658 in August). P2k (5462-5473) also came from MLW (works numbers were 76134-76141 in September 1948 and 76142-76145 in October.)

Last in series of CPR locomotives and part of the generation that was semi-streamlined.. Earlier P2s (Locobase 5050) had larger cylinders (23") and lower boiler pressure (250 psi). Notice how the smaller cylinders stretched the boiler's steam supply. Also had 32 2" (51 mm) tubes that added 302 sq ft (28.06 sq m) to evaporative heating surface area. Firebox heating surface included 36 sq ft (3.35 sq m) of arch tubes.

This last batch went into service on the plains east of the Rockies.

Specifications by Steve Llanso of Sweat House Media
ClassP1a/bP1d/eP1nP2a/b/cP2d
Locobase ID3086 4524 4523 407 9440
RailroadCanadian Pacific (CPR)Canadian Pacific (CPR)Canadian Pacific (CPR)Canadian Pacific (CPR)Canadian Pacific (CPR)
CountryCanadaCanadaCanadaCanadaCanada
Whyte2-8-22-8-22-8-22-8-22-8-2
Number in Class9595654515
Road Numbers5000-50945100-19, 5120-945200-52645300-53445345-5359
GaugeStdStdStdStdStd
Number Built954515
BuilderMontreal LWCanadian Pacificseveralseveralseveral
Year19131926194619191926
Valve GearWalschaertWalschaertWalschaertWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.67 / 5.0816.67 / 5.0816.60 / 5.0616.67 / 5.0816.67 / 5.08
Engine Wheelbase (ft / m)35.42 / 10.8035.42 / 10.8035.42 / 10.8035.67 / 10.8735.67 / 10.87
Ratio of driving wheelbase to overall engine wheebase 0.47 0.47 0.47 0.47 0.47
Overall Wheelbase (engine & tender) (ft / m)66.42 / 20.2472.74 / 22.1772.68 / 22.1575.11 / 22.8975.11 / 22.89
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)198,000 / 89,811216,500 / 98,203197,500 / 89,585243,000 / 110,223249,000 / 112,945
Engine Weight (lbs / kg)258,000 / 117,027280,000 / 127,006271,000 / 122,924330,000 / 149,686338,000 / 153,314
Tender Loaded Weight (lbs / kg)170,000 / 77,111231,000 / 104,780238,000 / 107,955295,000 / 133,810295,000 / 133,810
Total Engine and Tender Weight (lbs / kg)428,000 / 194,138511,000 / 231,786509,000 / 230,879625,000 / 283,496633,000 / 287,124
Tender Water Capacity (gals / ML)7000 / 26.5212,000 / 45.4512,000 / 45.4514,400 / 54.5514,400 / 54.55
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)16 / 14.5014 / 12.7018 / 16.4021 / 19.1021 / 19.10
Minimum weight of rail (calculated) (lb/yd / kg/m)83 / 41.5090 / 4582 / 41101 / 50.50104 / 52
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 160063 / 160063 / 160063 / 160063 / 1600
Boiler Pressure (psi / kPa)180 / 12.40190 / 13.10215 / 14.80200 / 13.80200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)23.5" x 32" / 597x81323" x 32" / 584x81322" x 32" / 559x81325" x 32" / 635x81325" x 32" / 635x813
Tractive Effort (lbs / kg)42,918 / 19467.3043,395 / 19683.6644,927 / 20378.5753,968 / 24479.5053,968 / 24479.50
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.61 4.99 4.40 4.50 4.61
Heating Ability
Firebox Area (sq ft / m2)188 / 17.47214 / 19.89214 / 19.89317 / 29.46317 / 29.46
Grate Area (sq ft / m2)50 / 4.6550.10 / 4.6650.10 / 4.6670.30 / 6.5370.30 / 6.53
Evaporative Heating Surface (sq ft / m2)3598 / 334.393138 / 291.643116 / 289.593665 / 340.613560 / 330.86
Superheating Surface (sq ft / m2)760 / 70.63860 / 79.93860 / 79.93845 / 78.53908 / 84.39
Combined Heating Surface (sq ft / m2)4358 / 405.023998 / 371.573976 / 369.524510 / 419.144468 / 415.25
Evaporative Heating Surface/Cylinder Volume223.97203.93221.32201.59195.81
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation9000951910,77214,06014,060
Same as above plus superheater percentage10,53011,61313,14116,73116,872
Same as above but substitute firebox area for grate area39,59349,60556,13275,44676,080
Power L113,38615,49019,12314,84915,382
Power MT596.18630.94853.85538.87544.76

Specifications by Steve Llanso of Sweat House Media
ClassP2e/fP2h, j
Locobase ID5050 3
RailroadCanadian Pacific (CPR)Canadian Pacific (CPR)
CountryCanadaCanada
Whyte2-8-22-8-2
Number in Class6069
Road Numbers5360-54045417-5473
GaugeStdStd
Number Built6069
Builderseveralseveral
Year19261943
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.50 / 5.0316.50 / 5.03
Engine Wheelbase (ft / m)35.67 / 10.8735.92 / 10.95
Ratio of driving wheelbase to overall engine wheebase 0.46 0.46
Overall Wheelbase (engine & tender) (ft / m)72.12 / 21.9876.75 / 23.39
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)249,000 / 112,945248,400 / 112,672
Engine Weight (lbs / kg)338,000 / 153,314339,000 / 153,768
Tender Loaded Weight (lbs / kg)237,000 / 107,502238,000 / 107,955
Total Engine and Tender Weight (lbs / kg)575,000 / 260,816577,000 / 261,723
Tender Water Capacity (gals / ML)12,000 / 45.4512,000 / 45.45
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)16 / 14.5018 / 16.40
Minimum weight of rail (calculated) (lb/yd / kg/m)104 / 52104 / 52
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 160063 / 1600
Boiler Pressure (psi / kPa)200 / 13.80275 / 19
High Pressure Cylinders (dia x stroke) (in / mm)23.5" x 32" / 597x81322" x 32" / 559x813
Tractive Effort (lbs / kg)47,686 / 21630.0357,465 / 26065.72
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.22 4.32
Heating Ability
Firebox Area (sq ft / m2)310 / 28.81310 / 28.80
Grate Area (sq ft / m2)70.30 / 6.5370.30 / 6.53
Evaporative Heating Surface (sq ft / m2)3425 / 318.313436 / 319.22
Superheating Surface (sq ft / m2)990 / 92.01970 / 90.12
Combined Heating Surface (sq ft / m2)4415 / 410.324406 / 409.34
Evaporative Heating Surface/Cylinder Volume213.21244.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14,06019,333
Same as above plus superheater percentage17,15323,586
Same as above but substitute firebox area for grate area75,640104,005
Power L118,15128,131
Power MT642.83998.68

Photos