Sugarland 4-6-0 "Ten-Wheeler" Type Locomotives

Class TN-56 1/2 - 23.4 (Locobase 7756)

Data from MP SUBS 7 - 1935 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See Locobase 7754 for an outline history of the SAU & G line. Works number was 53271 in May 1920.

This was a small, freight-oriented Ten-wheeler built quite late in the 4-6-0's US career.

The Sugarland was one of the several "Gulf Coast Lines" that were acquired by the New Orleans, Texas & Mexico in 1926. (The NOT & M was effectively acting as an agent for the Missouri Pacific.) After the MP took full control, it operated the 236 until October 1948, when the Espee sold 236 to the Hamlin & Northwestern.

Class TN-57 - 213 (Locobase 7095)

Data from MP 1953ca Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Also see Handbook of Texas Online, s.v. "," http://www.tsha.utexas.edu/handbook/online/articles/SS/eqs34.html (accessed July 30, 2006). Works numbers were 43157-43158 in April 1916.

These Ten-Wheelers were relatively small, but so was the short line for which they were built. The light axle loading may be a clue to the branch-line demands for which these engines were built. In 1925, the Missouri Pacific bought the Sugarland and renumbered 213-214.

After more than 20 years, the MP scrapped the 214 in August 1948 and 213 in June 1949

Specifications
Class	TN-56 1/2 - 23.4	TN-57 - 213
Locobase ID	7756	7095
Railroad	Sugarland (NOT & M/MP)	Sugarland (NOT & M/MP)
Whyte	4-6-0	4-6-0
Road Numbers	236	6-7 / 213-214
Gauge	Std	Std
Builder	Baldwin	Baldwin
Year	1920	1916
Valve Gear	Walschaert	Walschaert
	Locomotive Length and Weight
Driver Wheelbase	11.33'	11'
Engine Wheelbase	22.17'	21.25'
Ratio of driving wheelbase to overall engine wheebase	0.51	0.52
Overall Wheelbase (engine & tender)	49.17'	50.58'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers	98000 lbs	85000 lbs
Engine Weight	126000 lbs	112150 lbs
Tender Light Weight	109500 lbs	90000 lbs
Total Engine and Tender Weight	235500 lbs	202150 lbs
Tender Water Capacity	5000 gals
Tender Fuel Capacity (oil/coal)	2400 gals	gals
Minimum weight per yard of rail on which locomotive could run	54 lb rail	47 lb rail
	Geometry Relating to Tractive Effort
Driver Diameter	56.50"	57"
Boiler Pressure	185 psi	180 psi
Cylinders (dia x stroke)	18" x 26"	17" x 24"
Tractive Effort	23446 lbs	18618 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)	4.18	4.57
	Heating Ability
Firebox Area	152 sq. ft	125 sq. ft
Grate Area	28 sq. ft	19.70 sq. ft
Evaporative Heating Surface	2919	1438
Superheating Surface
Combined Heating Surface	2919	1438
Evaporative Heating Surface/Cylinder Volume	381.19	228.07
	Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation	5180	3546
Same as above plus superheater percentage	5180	3546
Same as above but substitute firebox area for grate area	28120	22500
Power L1	8370	5595
Power MT	564.88	435.35