loco-info.com - Norfolk Railway No. 3 to 5

No. 4 as ECR No. 45

Locomotive Magazine, May 1907

These three locomotives with five and a half foot driving wheels were delivered to the Norfolk Railway by Stephenson in 1844. They had an inside frame and outside cylinders. Numbers 3 and 5 were already sold in 1849. Only number 4 came to the Eastern Counties Railway, where it received the number 45. It also came to the Great Eastern and was scrapped in 1868.

General
Built	1844
Manufacturer	Stephenson
Axle config	2-2-2 (Jenny Lind)
Gauge	4 ft 8 1/2 in (Standard gauge)

Dimensions and Weights
Wheelbase	10 ft 4 in
Rigid wheelbase	10 ft 4 in
Service weight	47,040 lbs
Adhesive weight	22,400 lbs
Fuel capacity	coal

Boiler
Grate area	9 sq ft
Firebox area	51 sq ft
Tube heating area	672.8 sq ft
Evaporative heating area	723.8 sq ft
Total heating area	723.8 sq ft

Power Plant
Driver diameter	66 in
Boiler pressure	100 psi
Expansion type	simple
Cylinders	two, 14 x 22 in

Power
Power source	steam
Estimated power	120 hp (89 kW)
Starting effort	5,553 lbf

Calculated Values
Factor of adhesion	1 : 4.04
Optimal speed	14 mph
Power-to-weight ratio	0.0025 hp/lb
Heating Area Equivalent	978.8 sq ft
Cylinder volume/HAE	1 : 1220.61
Adhesive weight/Total	1 : 2.10
Tractive force/Heating area	1 : 1724.74
Grate area/Heating area	1 : 74.77
Firebox/Tube area	1 : 13.19

steam locomotive

passenger

last changed: 03/2023

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