NER Class 3CC

NER Class M
NER Class 3CC
LNER Class D19
Type and origin
Power type Steam
Designer Wilson Worsdell
Builder NER Gateshead
Build date 1893
Total produced 1
Rebuild date 1898
Specifications
Configuration 4-4-0
UIC class New: 2′B n2v
Rebuilt: 2′B n3v
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Leading dia. 3 ft 7 1⁄4 in (1,099 mm)
Driver dia. 7 ft 1 1⁄4 in (2,165 mm)
Wheelbase Loco: 23 ft 6 in (7.16 m)
Tender: 12 ft 8 in (3.86 m)
Total: 45 ft 8 3⁄4 in (13.94 m)
Axle load 20 long tons 0 cwt (44,800 lb or 20.3 t)
Loco weight 53 long tons 6 cwt (119,400 lb or 54.2 t)
Tender weight 41 long tons 4 cwt (92,300 lb or 41.9 t)
Total weight 94 long tons 10 cwt (211,700 lb or 96 t)
Firebox:
 • Firegrate area		 23.4 sq ft (2.17 m2)
Boiler 4 ft 6 in (1.37 m) diameter
Boiler pressure 160 psi (1.10 MPa)
Heating surface 1,290 sq ft (120 m2)
 • Tubes 1,170 sq ft (109 m2)
 • Firebox 120 sq ft (11 m2)
Cylinders Three: one inside high-pressure; two outside low-pressure
High-pressure cylinder 19 in × 26 in (483 mm × 660 mm)
Low-pressure cylinder 22 in × 26 in (559 mm × 660 mm)
Valve gear Stephenson
Performance figures
Tractive effort 14,504 lbf (64.52 kN)
Career
Operators NER » LNER
Numbers 1619
Withdrawn 1930
Disposition Scrapped

The NER Class 3CC (LNER Class D19) was a 4-4-0 steam locomotive designed by Wilson Worsdell for the North Eastern Railway and built in 1893. Only one was built (number 1619) and it was a compound expansion version of the simple expansion NER Class M1. The 3CC was originally classified M but was re-classified 3CC in 1914, at the same time as the M1 was re-classified M.

Overview

Number 1619 was built as a Worsdell-von Borries compound with two inside cylinders. In 1898, it was rebuilt as a three-cylinder compound with one inside high-pressure cylinder and two outside low-pressure cylinders, as a test-bed for the development of Walter Mackersie Smith's ideas.

Classification

Aside from its compound expansion, the 3CC was similar to several other NER classes and they are summarised here:

Original NER class 1914 NER class LNER Class Cylinders Driving wheels
M1 M D17/1 (2) 19″ x 26″ 7′ 1¼″
Q — D17/2 (2) 19½″ x 26″ 7′ 1¼″
Q1 — D18 (2) 19½″ x 26″ 7′ 7¼″
M (new) — — HP (1) 20″ x 26″
LP (1) 28″ x 26″		 7′ 1¼″
M (1898) 3CC D19 HP (1) 19″ x 26″
LP (2) 20″ x 26″		 7′ 1¼″

Accident

On 31 March 1920, the Class 3CC locomotive was derailed at York station whilst hauling a passenger train.[1]

Legacy

Number 1619 was a one-off but W. M. Smith went on to develop a four-cylinder compound system in the NER Class 4CC (LNER Class C8) 4-4-2 locomotive. Number 1619 was withdrawn in 1930 and was not preserved.

Smith's three-cylinder compound system was also used in the Great Central Railway classes 8D and 8E (LNER Class C5) 4-4-2s and achieved its greatest success in the Midland Railway 1000 Class and the LMS Compound 4-4-0. The Great Northern Railway (Ireland)'s class V was also a Smith compound.

References

  1. ↑ Hoole, Ken (1982). Trains in Trouble: Vol. 3. Redruth: Atlantic Books. p. 24. ISBN 0-906899-05-2.
Source

External links

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