Norfolk & Western 2-8-0 "Consolidation" Type Locomotives

Class B (Locobase 3197)

Data from 1929 Norfolk & Western locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive collection. (McShane (1899) also has details on this class, but does not include the boiler pressure.)

According to http://www.trainweb.org/railmaster/nw_rost.html (visited April 2003), this class was later simpled to two 21" x 32" cylinders and given piston valves.

Class G (Locobase 3137)

Data from 1929 N & W locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive collection.

This very large class of Consolidations first entered N & W service when Rogers delivered the first batch in January of 1889. Richmond and Baldwin also supplied Gs over the next few years, the last arriving in 1893.

Class G1 (Locobase 7821)

Data from N&W 3-1955 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This small batch of Consolidations was overshadowed by the Gs profiled in Locobase 317. But they represented a definite power upgrade with higher boiler pressure and more boiler heating surface on the same running gear.

Class W2 (Locobase 7823)

Data from N & W 3-1955 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive collection. See also Angus Sinclair, Railway & Locomotive Engineer, May 1902, pp. 195-196. Baldwin works numbers for its share:

1902

August 20818-20819, 20845-20847, 20884-20886

September 20934-20935, 20951-20953

October 21060-21061

1903

February 21622-21623, 21683, 21704

April 22059, 22061

June 22305, 22314, 22338, 22341, 22343, 22356, 22374

August 22652, 22654, 22693, 22696, 22700, 22734, 22744, 22756

September 22787, 22790, 22803, 22827

November 23151-23152, 23192-23193, 23226, 23232, 23267-23268, 23278. 23283

December 23311-23312, 23330-23331, 23370, 23390, 23414, 23419, 23441

1904

January 23504

March 23908, 23999

June 24383, 24387. 24400, 24408-24409, 24423

July 24498

1905

July 25968, 25983, 25984, 26010, 26028, 26031, 26048, 26054, 26090

September 26507-26508

October 26562, 26604

November 26759-26760, 26846, 26856, 26899

Alco's Cooke and Richmond works, Baldwin, and the N&W's own modern facility at Roanoke contributed to this large class of Consolidations. They were quite representative of turn-of -the-century locomotives - saturated boiler, piston valves, long stroke, and a wide firebox.

R & LE reported that "These engines have given excellent service, and are good steamers ...They will pull 1,100 tons up a 61-ft foot grade (1.2%) with moderate curvature."

Most of the class remained essentially unchanged throughout their long careers. Their tenders grew to hold 9,000 US gallons of water and 14 tons of coal. Scrapping began in the 1920s and had encompassed most of the class by the middle 1930s, but a few persisted until the 1950s.

Specifications
Class	B	G	G1	W2
Locobase ID	3197	3137	7821	7823
Railroad	Norfolk & Western	Norfolk & Western	Norfolk & Western	Norfolk & Western
Whyte	2-8-0	2-8-0	2-8-0	2-8-0
Road Numbers	61-70	188-314,346-351,558-564	200-206, 352-358	673-799+
Gauge	Std	Std	Std	Std
Builder	Burnham, Williams & Co	several	several	several
Year	1898	1889	1897	1902
Valve Gear	Stephenson		Stephenson	Baker
	Locomotive Length and Weight
Driver Wheelbase	15.50'	14.50'	14'	15.50'
Engine Wheelbase	24.50'	22'	21.50'	23.92'
Ratio of driving wheelbase to overall engine wheebase	0.63	0.66	0.65	0.65
Overall Wheelbase (engine & tender)	55.66'	56.60'	48.46'	50.33'
Axle Loading (Maximum Weight per Axle)	43510 lbs	32600 lbs		42790 lbs
Weight on Drivers	166000 lbs	106780 lbs	107000 lbs	150000 lbs
Engine Weight	186000 lbs	120565 lbs	120785 lbs	168000 lbs
Tender Light Weight	94680 lbs	62800 lbs	116630 lbs	167500 lbs
Total Engine and Tender Weight	280680 lbs	183365 lbs	237415 lbs	335500 lbs
Tender Water Capacity	4000 gals	4000 gals	6000 gals	5000 gals
Tender Fuel Capacity (oil/coal)	8.5 tons	8.5 tons	13.8 tons	10 tons
Minimum weight per yard of rail on which locomotive could run	69.17 lb rail	44.49 lb rail	44.58 lb rail	63 lb rail
	Geometry Relating to Tractive Effort
Driver Diameter	56"	50"	50"	56"
Boiler Pressure	200 psi	150 psi	180 psi	200 psi
Cylinders (dia x stroke)	23" x 32" (1)	20" x 24"	20" x 24"	21" x 30"
Tractive Effort	35890 lbs	24480 lbs	29376 lbs	40163 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)	4.63	4.36	3.64	3.73
	Heating Ability
Firebox Area	195 sq. ft	161 sq. ft	161 sq. ft	156 sq. ft
Grate Area	35.08 sq. ft	31 sq. ft	31 sq. ft	47.30 sq. ft
Evaporative Heating Surface	2789	1770	1812	2474
Superheating Surface
Combined Heating Surface	2789	1770	1812	2474
Evaporative Heating Surface/Cylinder Volume	362.49	202.83	207.64	205.71
	Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation	7016	4650	5580	9460
Same as above plus superheater percentage	7016	4650	5580	9460
Same as above but substitute firebox area for grate area	39000	24150	28980	31200
Power L1	3943.52	3688.42	4498.29	5051
Power MT	209.49	304.61	370.73	296.95