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The reference for locomotives and railcars

Philadelphia & Reading No. 100 (1902)

United States 1902 1 produced
collection Ron Goldfeder

One of the Philadelphia & Reading inspection engines was number 100, built by Baldwin in 1902 as their number 21341. It had a 4-4-0 wheel arrangement and a narrow boiler. The boiler was deeply embedded in the passenger compartment and there were four armchairs on each of its sides. With a heating surface smaller than that of most 1870s 4-4-0 locomotives, it was not intended to haul many additional cars. The locomotive was painted olive green with crimson stripes while the tender was Pullman brown with gold lettering and stripes. The latter had a scoop to replenish the water on the run. In 1913 a new built 4-4-2 inspection engine got the number 100 and this one was renumbered to 102. It was scrapped in 1925.

Schematic drawing collection Ron Goldfeder

Technical data

General

Built
1902
Manufacturers
Baldwin
Wheel arrangement
4-4-0 (American)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Length loco
9.79 m
Wheelbase
6.20 m
Service mass
44.5 t
Adhesion mass
29 t
Total mass
81.6 t
Rigid wheelbase
2.29 m
Axle load
14.5 t
Water capacity
13,249 l

Boiler

Grate area
2.295 m²
Firebox surface
8.203 m²
Tube heating surface
84.607 m²
Evaporative heating surface
92.81 m²
Total heating surface
92.8 m²

Power plant

Driver diameter
1,524 mm
Boiler pressure
13.8 bar
Expansion type
simple expansion
Cylinders
two, 432 x 508 mm

Power

Power source
steam
Estimated power
373 kW (507 PS)
Starting effort
72.8 kN

Calculated values

Factor of adhesion
1 : 3.91
Optimal speed
31 km/h
Power-to-weight ratio
8.4 kW/t
Heating Surface Equivalent
133.8 m²
Cylinder volume/HSE
1 : 1,111.76
Adhesive weight/Total
1 : 1.53
Tractive force/Heating surface
1 : 16.39
Grate area/Heating surface
1 : 40.44
Firebox/Tube surface
1 : 10.31
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