Grafton & Upton 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 11482)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Vol 26, p. 278. Works number was 23934 in March 1904.

This relatively Mogul served the G & U mostly at night in transfer service on that central Massachusetts road. The G & U an electrified interurban line with a busy passenger schedule during the day.

In 1920, #5 was sold to locomotive rebuilder General Equipment, who found a willing buyer in the Rahway Valley (of New Jersey), which renumbered it 11.

The RV, a prosperous shortline that made money even during the Depression (according to the historical website ) operated the 11 for almost 2 more decades before scrapping int in 1937.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11,482
RailroadGrafton & Upton
Number in Class1
Road Numbers5
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)13.67
Engine Wheelbase (ft)21.29
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)103,000
Engine Weight (lbs)121,000
Tender Loaded Weight (lbs)70,000
Total Engine and Tender Weight (lbs)191,000
Tender Water Capacity (gals)3500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)57
Geometry Relating to Tractive Effort
Driver Diameter (in)56.50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 26"
Tractive Effort (lbs)25,417
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.05
Heating Ability
Firebox Area (sq ft)140
Grate Area (sq ft)21
Evaporative Heating Surface (sq ft)1522
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1522
Evaporative Heating Surface/Cylinder Volume178.38
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3780
Same as above plus superheater percentage3780
Same as above but substitute firebox area for grate area25,200
Power L14414
Power MT283.43

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