Central of Georgia 2-8-0 "Consolidation" Type Locomotives

Central of Georgia 2-8-0 "Consolidation" Type Locomotives

Class 100 (Locobase 7103)

Data from CofG 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Except for being relatively heavy on the drivers, these were typical North American Consolidations of the time. The firebox heating surface included 28.78 sq ft of arch tubes.Five had the 18" x 24" cylinders and 180-psi boilers shown in the specs. Four others had 20" x 24"cylinders and lower BP: 102 pressed to 150 psi; 103, 105, and 109 had 145-psi settings.

Class 110 (Locobase 7104)

Data from CofG 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

A single Baldwin Consolidation with a low-pressure boiler. The firebox heating surface included 22.5 sq ft of arch tubes.

Class C-1 (Locobase 7106)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

These Consolidations were purchased for the Columbus (Ga)-Birmingham freight service. As Locobase 7107 shows, the design went through several revisions. Some were fitted with a combustion chamber that shortened the boiler tubes (but led to many more in the barrel).

Class C-1 - cc (Locobase 7107)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

As the Cooke 2-8-0s went through modifications and upgrades, nine were fitted with a new boiler that had more tubes of shorter length and a much wider firebox (84" vs the original design's 39"). The combustion chamber contributed 67.4 sq ft to the direct heating surface.

Locobase 7108 shows another variant.

Class C-1 - wfb (Locobase 7108)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

Another variation of the Cooke-built Consolidations that arrived on the C of Ga had a boiler that was wider than the majority's 39" (it spanned 71 1/4"), but slightly shorter. The tubes were the same length as the original, but were a few more in number.

Class C-2 (Locobase 7109)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

These Baldwins were procured specifically to haul fast and light freight trains and were used throughout the system. They used the wide firebox that had been fitted to some of the earlier Cooke engines. Like the Cookes, it appears that the combustion chamber was created by putting a low wall in an otherwise long firebox. The resulting space forward of the wall contributed 55 sq ft to the direct heating surface.

Some were significantly reconfigured when superheated; see Locobase 7110.

Class C-2s (Locobase 7110)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

When the C-2s (Locobase 7109) were superheated, the redesign replaced the firebox with a narrower version that had no combustion chamber but that did offer 29 sq ft of arch tubes to contribute to the firebox heating surface.

Class C-3 (Locobase 4048)

Profiled in a 1907 Baldwin catalogue excerpt from http://www.railroadextra.com/blwcat01.htm . (The table in the June 1907 AERJ shows 2,209 sq ft for the boiler, of which 140 sq ft is the firebox area.) Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection shows a firebox heating surface that included 25.15 sq ft of arch tubes. The illustration shows a high-pitched boiler, rounded dome, and slide valves.

Drury (1993) shows that these light Consolidations were accompanied by 25 heavier 2-8-0s (C-4) delivered by Baldwin in the same years. Both served for decades with the first retirements coming in 1935 and continuing until 1953.

Class C-3s (Locobase 7105)

Data from the CofGA 11 - 1927 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface that included 25.15 sq ft of arch tubes.

This entry represents the C-3 Consolidations that were later superheated as shown. They gave up a considerable amount of evaporative heating surface for the 24 flues. Another change was the substitution of 8" piston valves for the slide valves that had originally distributed the steam. One - 204 - later had one arch tube removed and 38 sq ft of thermic syphons added, which increased the firebox heating surface to 191.5 sq ft.

The class was retired over a long period of time, the first being withdrawn in 1935, the last in 1953.

Class C-4 (Locobase 7939)

Data from the CofGA 12 - 1925 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Firebox heating surface included 12.7 sq ft of arch tubes.

Baldwin's Consolidations came in two sizes to the C of Ga in 1906. The lighter C-3 class is shown in Locobase 4048 and 7105 . The current set came in two batches that differed only in delivery date. Like the smaller C-3s, the C-4s were superheated in the 1920s and carried on until the end of steam on the C of Ga.

Specifications

Class 100 110 C-1 C-1 - cc C-1 - wfb C-2 C-2s C-3 C-3s C-4

Locobase ID 7103 7104 7106 7107 7108 7109 7110 4048 7105 7939

Railroad Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia Central of Georgia

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 2-8-0

Road Numbers 100-105, 107-109 110 111-132 112-14, 116-117,etc 112-14, 116-117,etc 150-187 1200-1224 1200-1224 1700-1724, 500-524

Gauge Std Std Std Std Std Std Std Std Std Std

Builder Burnham, Parry, Williams & Co Burnham, Williams & Co Cooke Cooke Cooke Burnham, Williams & Co Central of Georgia Burnham, Williams & Co Burnham, Williams & Co Burnham, Williams & Co

Year 1887 1893 1901 1904 1906 1906 1906

Valve Gear Stephenson Stephenson Stephenson Stephenson Stephenson Stephenson Stephenson Stephenson Stephenson Stephenson

Locomotive Length and Weight

Driver Wheelbase 14' 13.67' 15.42' 15.42' 15.42' 16' 16' 16' 16' 16'

Engine Wheelbase 21.50' 21.42' 23.75' 23.75' 23.75' 24.29' 24.29' 24.29' 24.29' 24.29'

Ratio of driving wheelbase to overall engine wheebase 0.65 0.64 0.65 0.65 0.65 0.66 0.66 0.66 0.66 0.66

Overall Wheelbase (engine & tender) 56.79' 57.77' 53.75' 53.75' 56.60'

Axle Loading (Maximum Weight per Axle) 41365 lbs 38550 lbs

Weight on Drivers 105330 lbs 104890 lbs 174050 lbs 175875 lbs 174050 lbs 148075 lbs 144630 lbs 143290 lbs 146500 lbs 184400 lbs

Engine Weight 117300 lbs 121090 lbs 193400 lbs 197275 lbs 193400 lbs 168675 lbs 165030 lbs 163390 lbs 167000 lbs 207900 lbs

Tender Light Weight 66300 lbs 74000 lbs 122000 lbs 122000 lbs 122000 lbs 106000 lbs 106000 lbs 120000 lbs 120000 lbs 150000 lbs

Total Engine and Tender Weight 183600 lbs 195090 lbs 315400 lbs 319275 lbs 315400 lbs 274675 lbs 271030 lbs 283390 lbs 287000 lbs 357900 lbs

Tender Water Capacity 3050 gals 4000 gals 6000 gals 6000 gals 6000 gals 5000 gals 5000 gals 6000 gals 6000 gals 7500 gals

Tender Fuel Capacity (oil/coal) 9 tons 7 tons 10 tons 10 tons 10 tons 10 tons 10 tons 8 tons 12.5 tons 12.5 tons

Minimum weight per yard of rail on which locomotive could run 43.89 lb rail 43.70 lb rail 72.52 lb rail 73.28 lb rail 72.52 lb rail 61.70 lb rail 60.26 lb rail 59.70 lb rail 61.04 lb rail 76.83 lb rail

Geometry Relating to Tractive Effort

Driver Diameter 50" 50" 55" 55" 55" 57" 57" 57" 57" 57"

Boiler Pressure 180 psi 140 psi 200 psi 200 psi 200 psi 200 psi 200 psi 200 psi 200 psi 200 psi

Cylinders (dia x stroke) 18" x 24" 20" x 24" 21" x 32" 21" x 32" 21" x 32" 20" x 28" 20" x 28" 20" x 28" 20" x 28" 22" x 30"

Tractive Effort 23795 lbs 22848 lbs 43619 lbs 43619 lbs 43619 lbs 33404 lbs 33404 lbs 33404 lbs 33404 lbs 43305 lbs

Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.43 4.59 3.99 4.03 3.99 4.43 4.33 4.29 4.39 4.26

Heating Ability

Firebox Area 158.78 sq. ft 160.42 sq. ft 235.17 sq. ft 193.33 sq. ft 183.27 sq. ft 143.23 sq. ft 183 sq. ft 166.45 sq. ft 166.45 sq. ft 184.70 sq. ft

Grate Area 30.60 sq. ft 24.85 sq. ft 33.73 sq. ft 56.36 sq. ft 53.31 sq. ft 42 sq. ft 29.95 sq. ft 44 sq. ft 44 sq. ft 54 sq. ft

Evaporative Heating Surface 1592 1781 3022 3113 3055 2114 1934 2339 1758 2560

Superheating Surface 352 400 535

Combined Heating Surface 1592 1781 3022 3113 3055 2114 2286 2339 2158 3095

Evaporative Heating Surface/Cylinder Volume 225.22 204.09 235.58 242.67 238.15 207.64 189.96 229.74 172.67 193.95

Computations Relating to Power Output (More Information)

Robert LeMassena's Power Computation 5508 3479 6746 11272 10662 8400 5990 8800 8800 10800

Same as above plus superheater percentage 5508 3479 6746 11272 10662 8400 6912.34 8800 10431.14 12666.88

Same as above but substitute firebox area for grate area 28580.40 22458.80 47034 38666 36654 28646 42235.70 33290 39460.53 43325.43

Power L1 5063.04 3453.35 5999.34 5830.42 5675.64 5281.64 11228.96 5918.20 11552.28 11945.67

Power MT 423.89 290.34 303.96 292.34 287.56 314.54 684.66 364.22 695.38 571.27

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.

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