NER 66 Aerolite

Specifications
Configuration:;
• Whyte	2-2-2T, rebuilt as 4-2-2T, rebuilt again as 2-2-4T
Leading dia.	3 ft 7 in (1.092 m)
Driver dia.	5 ft 7 3⁄4 in (1.721 m)
Trailing dia.	3 ft 1 1⁄4 in (0.946 m)
Wheelbase	20 ft 7 in (6.27 m)
Length	32 ft 8 1⁄2 in (9.970 m)
Axle load	19.5 long tons (19.8 t; 21.8 short tons)
Loco weight	44.95 long tons (45.67 t; 50.34 short tons)
Fuel capacity	2.5 long tons (2.5 t; 2.8 short tons)
Water cap	1,620 imp gal (7,400 l; 1,950 US gal)
Firebox:; • Firegrate area	11 sq ft (1.0 m2)
Boiler	3 ft 9 3⁄4 in (1.162 m) diameter
Boiler pressure	175 psi (1.21 MPa)
Heating surface	766 sq ft (71.2 m2)
• Tubes	701 sq ft (65.1 m2)
• Firebox	65 sq ft (6.0 m2)
Cylinders	2 inside (1 HP 1 LP)
High-pressure cylinder	13 in × 20 in (330 mm × 508 mm)
Low-pressure cylinder	18.5 in × 20 in (470 mm × 510 mm)
Valve gear	Stephenson

Type and origin
Power type	Steam
Builder	Gateshead works
Build date	1869
Total produced	1
Rebuild date	1892, 1902

Aerolite
	66 Aerolite preserved in the National Railway Museum
Type and origin
Power type	Steam
Builder	Gateshead works
Build date	1869
Total produced	1
Rebuild date	1892, 1902
Specifications
Configuration:;
• Whyte	2-2-2T, rebuilt as 4-2-2T, rebuilt again as 2-2-4T
Leading dia.	3 ft 7 in (1.092 m)
Driver dia.	5 ft 7 3⁄4 in (1.721 m)
Trailing dia.	3 ft 1 1⁄4 in (0.946 m)
Wheelbase	20 ft 7 in (6.27 m)
Length	32 ft 8 1⁄2 in (9.970 m)
Axle load	19.5 long tons (19.8 t; 21.8 short tons)
Loco weight	44.95 long tons (45.67 t; 50.34 short tons)
Fuel capacity	2.5 long tons (2.5 t; 2.8 short tons)
Water cap	1,620 imp gal (7,400 l; 1,950 US gal)
Firebox:; • Firegrate area	11 sq ft (1.0 m2)
Boiler	3 ft 9 3⁄4 in (1.162 m) diameter
Boiler pressure	175 psi (1.21 MPa)
Heating surface	766 sq ft (71.2 m2)
• Tubes	701 sq ft (65.1 m2)
• Firebox	65 sq ft (6.0 m2)
Cylinders	2 inside (1 HP 1 LP)
High-pressure cylinder	13 in × 20 in (330 mm × 508 mm)
Low-pressure cylinder	18.5 in × 20 in (470 mm × 510 mm)
Valve gear	Stephenson
Performance figures
Tractive effort	6,390 lbf (28.4 kN)
Career
Operators	NER, LNER
Class	LNER: X1
Numbers	66
Official name	Aerolite
Retired	1933
Disposition	Static display

North Eastern Railway (NER) No. 66 Aerolite is a preserved British steam locomotive. It was classified X1 by the LNER.

History

Aerolite was built in 1869 as a replacement for an engine of the same name built by Kitson's for the Great Exhibition in 1851 and which was destroyed in a collision in 1868. The engine, like its predecessor, was used to haul the Mechanical Engineer's saloon. Originally a 2-2-2WT well tank, side tanks were added 1886, and around this time it received the number 66.

In 1892 Aerolite was rebuilt into a 4-2-2T, destroying much of the original engine. The well tank was removed, the side tanks expanded, and the two-cylinder Worsdell-von Borries compounding system applied. In 1902 it was again rebuilt into a 2-2-4T.

Aerolite was withdrawn in 1933 and preserved in 1934 at the LNER's York museum. It can be seen as a static exhibit at the National Railway Museum in York.

In fiction

An engine of this type is seen in the TV Series Thomas the Tank Engine and Friends, as the character Whiff. The character carries the number 66 just like the engine he is based on.

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References

Baxter, Bertram (1986). Baxter, David (ed.). British Locomotive Catalogue 1825–1923, Volume 5A: North Eastern Railway, Hull and Barnsley Railway. Ashbourne, Derbyshire: Moorland Publishing Company. p. 125. ISBN 0-903485-54-0.

External links

The Wilson Worsdell X1 2-2-4T Locomotive 'Aerolite' LNER Encyclopedia

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