Norfolk Southern / Norfolk & Southern 4-4-0 "American" Type Locomotives

Class 31 (Locobase 4944)

Data taken from http://users.inna.net/~jaydeet/ Rogers works number 3154

Class 38 (Locobase 4945)

Data taken from http://users.inna.net/~jaydeet/ and the Norfolk & Southern Steam Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive collection.

This is a slightly bigger design than the 1882 Rogers engine. In the diagram, the grate area is supposedly doubled to 36 sq ft. That seems unlikely, but there is no other information to go on. On the other hand, the diagram shows that the firebox is mounted above the driving axles and thus is wider.

Locobase can't match these to any entry on JF Webber's list of Dickson locomotives (conveyed to Locobase by Allen Stanley in March 2004).

Class B-5 (Locobase 11431)

Data from "Locomotive Building," The Railroad Gazette, Vol XLI, No 5 (3 August 1906), p. 31. Works numbers were 749-750. Works numbers were 30491, 30508, 30521-30522, 30532 in March 1907; 30570-30571 in April 1907.

A small Ten-wheeler lasted only about 7 years on the EBT before being replaced by the two 2-8-2s and one 2-6-2. But it had a much longer career on the Ohio River & Western as their #15, lasting 18 years before bing scrapped in 1931.

Specifications
Class	31	38	B-5
Locobase ID	4944	4945	11431
Railroad	Norfolk Southern	Norfolk Southern	Norfolk & Southern
Whyte	4-4-0	4-4-0	4-4-0
Road Numbers		38-39	48-54 / 55-57, 51-54
Gauge	Std	Std	Std
Builder	Rogers	Dickson	Burnham, Williams & Co
Year	1882	1884	1907
Valve Gear	Stephenson	Stephenson	Stephenson
	Locomotive Length and Weight
Driver Wheelbase	8.50'	8.59'
Engine Wheelbase	23.22'	22.92'
Ratio of driving wheelbase to overall engine wheebase	0.37	0.37
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers	62500 lbs	68100 lbs	72000 lbs
Engine Weight	94500 lbs	92400 lbs	116000 lbs
Tender Light Weight
Total Engine and Tender Weight	0	0	132000 lbs
Tender Water Capacity	3000 gals	3800 gals	4000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight per yard of rail on which locomotive could run	52 lb rail	57 lb rail	60 lb rail
	Geometry Relating to Tractive Effort
Driver Diameter	68"	68"	61"
Boiler Pressure	140 psi	140 psi	180 psi
Cylinders (dia x stroke)	17" x 24"	19" x 24"	18" x 24"
Tractive Effort	12138 lbs	15162 lbs	19504 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)	5.15	4.49	3.69
	Heating Ability
Firebox Area
Grate Area	18 sq. ft	36 sq. ft	18.70 sq. ft
Evaporative Heating Surface	1200	1234	1496
Superheating Surface
Combined Heating Surface	1200	1234	1496
Evaporative Heating Surface/Cylinder Volume	190.33	156.68	211.64
	Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation	2520	5040	3366
Same as above plus superheater percentage	2520	5040	3366
Same as above but substitute firebox area for grate area	0	0	0
Power L1	0	0	0
Power MT	0	0	0