Hocking Valley / Cumberland & Pennsylvania / Chesapeake & Ohio 2-8-0 "Consolidation" Type Locomotives

Class C10/C11/C12 - original (Locobase 11246)

Data from Hocking Valley 9-1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See also the article "From Ohio to Korea: C&O's wandering 2-8-0s" by Thomas W Dixon, Jr. in the Chesapeake & Ohio Historical Magazine (Nov 1999), accessed on http://www.findarticles.com/p/articles/mi_qa3943/is_199911/ai_n9410620

After the C & O gained control of the HV in 1910, its preferred builder was the natural choice for the coal road's new Consolidations, says Dixon. And these were big 2-8-0s - big radial-stayed boiler and wide grate serving a relatively large amount of cylinder volume through 14" diameter piston valves. (Of the 20 delivered first, 10 had piston valves, 10 had slide valves.)

(The C10s of 1910 are described as having 9" piston valves.)

These were rated at 4,800 tons up a 0.3% grade.

The lack of superheat was likely soon remedied; see Locobase 7846 for the superheated update.

Class C10/C11/C12//G-3/G-4/G-5 (Locobase 7846)

After the C & O gained control of the HV in 1910, its preferred builder was the natural choice for the coal road's new Consolidations, says Dixon. And these were big 2-8-0s - big radial-stayed boiler and wide grate serving a relatively large amount of cylinder volume through 14" diameter piston valves. (The C10s of 1910 are described as having 9" piston valves.) Only the superheat ratio was just average.

Dixon tells of one C-12's unusual duty, for which it proved admirably suited: "Not surprisingly these locomotives stayed generally in their old HV haunts in central and southeastern Ohio through the rest of their lives. No. 701, however, was taken out of this service and sent to Clifton Forge, Virginia, in 1940, and it spent the next decade and more pulling the passenger trains operating on the Hot Springs branch from Covington to Hot Springs. The high tractive effort, short wheel base and ample boiler made this a logical decision for trains that consisted of two to six passenger cars and an occasional freight car, going up a 25-mile long branch with one tremendous 4.6% grade at its end." Locobase applauds how this description conjures up an image of a workmanlike locomotive straining against the pull of gravity.

Class C13 / G-12 (Locobase 7854)

Data from Hocking Valley 9-1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

The HV diagram notes that these Baldwins came on the HV in November 1917, more than 10 years after their original manufacture for the C & P. As completed the engines had 404 2" tubes in a saturated boiler, small 8"-diameter piston valves with a 6" maximum travel, but a relatively large grate.

By the time the diagram was completed in 1924, the engines had been superheated as shown. The new distribution of tubes and flues, however, is not depicted. The HV was taken into the Chesapeake & Ohio. The C & O retired the class in August 1935 and scrapped them in December.

Class C4/C7 (Locobase 7851)

Data from Hocking Valley 9-1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Like many of the HV's engines at the time, these Consolidations were equipped with square-shouldered Belpaire fireboxes. The 10 C7s produced in 1903 were identical to the 13 C4s of 1900 except for a slight increase in weight.

Class C8 (Locobase 7852)

Data from Hocking Valley 9-1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

While Brooks was delivering its orders of Belpaire-firebox Consolidations (see Locobase 7851), Rogers added 10 more very similar locomotives with 6 more boiler tubes and a slightly larger grate and firebox.

Class C9 (Locobase 7853)

Data from Hocking Valley 9-1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Although based on the earlier Brooks Consolidations delivered to the HV (see Locobase 7851), this set featured a boiler with 10 fewer tubes, a somewhat wider Loughridge Belpaire firebox that still sat between the frames, and radial valve gear operating 11"piston valves.

Class G-6 (Locobase 3930)

Data source is Railroad Gazette (16 March 1900), which shows a conventional Consolidation with clerestory cab and a relatively narrow, but deep firebox. This large class, which was delivered in batches of 25 in each of the three years from 1899-1901, carried on until the 1930s.

B Rumary's summary of Richmond production, supplied by Allen Stanley in March 2004, lists the following works numbers for this class:

2782, 2887-2895, 2917-2931, 3076-3100, 3189-3213.

Class G-7 (Locobase 9103)

Data from C & O 9 - 1936 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This was the largest single class of road engines to serve the C & O. Alco-Richmond produced the great bulk of the orders from 1903-1907; Baldwin added 25. Some of the class had 370 tubes and a total of 3,023 sq ft of heating surface.

In 1916, Pittsburgh added 25 more with superheaters and some of the earlier G-7s were brought up t to this design; see Locobase 9104

Class G-7-S (Locobase 9106)

Data from C & O 9 - 1936 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Specifications
Class	C10/C11/C12 - original	C10/C11/C12//G-3/G-4/G-5	C13 / G-12	C4/C7	C8	C9	G-6	G-7	G-7-S
Locobase ID	11246	7846	7854	7851	7852	7853	3930	9103	9106
Railroad	Hocking Valley (C&O)	Hocking Valley (C&O)	Cumberland & Pennsylvania (C&O)	Hocking Valley (C&O)	Hocking Valley (C&O)	Hocking Valley (C&O)	Chesapeake & Ohio (C & O)	Chesapeake & Ohio (C & O)	Chesapeake & Ohio (C & O)
Whyte	2-8-0	2-8-0	2-8-0	2-8-0	2-8-0	2-8-0	2-8-0	2-8-0	2-8-0
Road Numbers	150-179	150-179	27-29 / 280-282 / 1080-1082	225-237, 248-257	258-267	268-276	351-425	790-994	996-1001+
Gauge	Std	Std	Std	Std	Std	Std	Std	Std	Std
Builder	Alco-Richmond	Alco-Richmond	Burnham, Williams & Co	Alco-Brooks	Alco-Rogers	Alco-Brooks	Richmond	several	Alco-Pittsburgh
Year	1910	1910	1906	1900	1903	1907	1899	1903	1916
Valve Gear	Baker	Baker	Stephenson	Stephenson	Stephenson	Walschaert	Stephenson	Stephenson	Walschaert
	Locomotive Length and Weight
Driver Wheelbase	17.25'	17.25'	16'	15'	15'	15'	17'	17'	17'
Engine Wheelbase	26.42'	26.42'	24.29'	23.08'	23'	23.25'		25.65'	25.65'
Ratio of driving wheelbase to overall engine wheebase	0.65	0.65	0.66	0.65	0.65	0.65		0.66	0.66
Overall Wheelbase (engine & tender)	58.25'		53.10'	51.96'	50.81'	52.02'	54.06'	55.52'	56.85'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers	208000 lbs	215000 lbs	182800 lbs	133500 lbs	142500 lbs	146000 lbs	167500 lbs	163900 lbs	176150 lbs
Engine Weight	236000 lbs	244000 lbs	204000 lbs	150500 lbs	160000 lbs	164000 lbs	186500 lbs	184400 lbs	200675 lbs
Tender Light Weight	144000 lbs	156000 lbs	94000 lbs	96500 lbs	106500 lbs	107500 lbs		117400 lbs	133310 lbs
Total Engine and Tender Weight	380000 lbs	400000 lbs	298000 lbs	247000 lbs	266500 lbs	271500 lbs	0	301800 lbs	333985 lbs
Tender Water Capacity	7500 gals	7500 gals	5000 gals	5000 gals	5000 gals	5000 gals	6000 gals	6000 gals	7000 gals
Tender Fuel Capacity (oil/coal)	16 tons	17 tons	9 tons	10 tons	21 tons	10 tons	10 tons	11 tons	11 tons
Minimum weight per yard of rail on which locomotive could run	87 lb rail	90 lb rail	76 lb rail	55.62 lb rail	59.38 lb rail	60.83 lb rail	69.79 lb rail	68 lb rail	73.40 lb rail
	Geometry Relating to Tractive Effort
Driver Diameter	57"	57"	56"	54"	54"	54"	56"	56"	56"
Boiler Pressure	205 psi	205 psi	200 psi	180 psi	180 psi	180 psi	200 psi	200 psi	185 psi
Cylinders (dia x stroke)	23" x 30"	23" x 30"	22" x 30"	20" x 26"	20" x 26"	20" x 26"	22" x 28"	22" x 28"	23.5" x 28"
Tractive Effort	48515 lbs	48515 lbs	44079 lbs	29467 lbs	29467 lbs	29467 lbs	41140 lbs	41140 lbs	43421 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)	4.29	4.43	4.15	4.53	4.84	4.95	4.07	3.98	4.06
	Heating Ability
Firebox Area	202 sq. ft	202 sq. ft	187 sq. ft	154.42 sq. ft	158 sq. ft	165.65 sq. ft	239 sq. ft	183 sq. ft	183 sq. ft
Grate Area	55 sq. ft	55 sq. ft	53 sq. ft	31.08 sq. ft	31.27 sq. ft	31 sq. ft	35.50 sq. ft	46.87 sq. ft	46.87 sq. ft
Evaporative Heating Surface	3530	3081	2499	1888	1937	1825	2805	2969	2198
Superheating Surface		620	548						456
Combined Heating Surface	3530	3701	3047	1888	1937	1825	2805	2969	2654
Evaporative Heating Surface/Cylinder Volume	244.69	213.57	189.33	199.71	204.89	193.04	227.69	241.01	156.37
	Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation	11275	11275	10600	5594.40	5628.60	5580	7100	9374	8670.95
Same as above plus superheater percentage	11275	13192	12508	5594.40	5628.60	5580	7100	9374	10160.76
Same as above but substitute firebox area for grate area	41410	48450	44132	27795.60	28440	29817	47800	36600	39671.83
Power L1	6129	13056	11832	4558.31	4672.95	4546.57	6061.04	5885	8865.34
Power MT	259.85	535.51	570.79	301.10	289.18	274.62	319.10	316.64	443.82