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The reference for locomotives and railcars

Atlanta & Charlotte Air Line “Talullah”

Southern Railway (USA) No. 1509 “Maud”

United States 1879 1 produced
Stephen Phillips

The Forney “Tallulah”, later known as the “Maud”, is today the oldest surviving locomotive of the Southern Railway. Built for the Atlanta & Charlotte Air Line in 1879, she was most likely used on commuter trains, although few records exist from this period. She finally came to the Southern in 1894 via the Richmond and Danville Railroad.

Exact records are only existing since 1903, when she was given the number 1509 as part of a rebuild and was called “Maud” by the staff. She was now used as a switcher, which was probably also the case in the years before. She was retired in 1950 and saved from the scrapyard due to her popularity with employees. Today she resides disassembled at the South Eastern Railroad Museum in Duluth, Georgia in a condition that offers no hope of refurbishment.

Technical data

General

Built
1879
Manufacturers
Baldwin
Wheel arrangement
0-4-4T (Forney)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Wheelbase
6.41 m
Service mass
50.3 t
Rigid wheelbase
2.13 m
Water capacity
3,785 l

Boiler

Grate area
1.291 m²
Firebox surface
7.618 m²
Tube heating surface
64.568 m²
Evaporative heating surface
72.186 m²
Total heating surface
72.2 m²

Power plant

Driver diameter
1,219 mm
Boiler pressure
9 bar
Expansion type
simple expansion
Cylinders
two, 406 x 610 mm

Power

Power source
steam
Estimated power
186 kW (253 PS)
Starting effort
62.9 kN

Calculated values

Optimal speed
18 km/h
Power-to-weight ratio
3.7 kW/t
Heating Surface Equivalent
110.3 m²
Cylinder volume/HSE
1 : 1,434.14
Tractive force/Heating surface
1 : 18.20
Grate area/Heating surface
1 : 55.91
Firebox/Tube surface
1 : 8.48
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