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Specifications
Specifications
Configuration:;
• Whyte	2-4-0T (as built) ; 2-4-0 (after rebuild)
Gauge	7 ft 1⁄4 in (2,140 mm)
Leading dia.	3 ft 6 in (1,067 mm)
Driver dia.	5 ft 1 in (1,549 mm)
Wheelbase	17 ft 0 in (5.18 m)
Cylinder size	17 in × 26 in (432 mm × 660 mm)

Type and origin
Type and origin
Power type	Steam
Designer	William Dean
Builder	Great Western Railway
Order number	Lot 64
Serial number	1006–1015
Build date	1885
Total produced	10
Rebuild date	1890–1891
Number rebuilt	5

3501 Class
3501 Class
Power type
Type and origin
Power type	Steam
Designer	William Dean
Builder	Great Western Railway
Order number	Lot 64
Serial number	1006–1015
Build date	1885
Total produced	10
Rebuild date	1890–1891
Number rebuilt	5
Configuration:;
Specifications
Configuration:;
• Whyte	2-4-0T (as built) ; 2-4-0 (after rebuild)
Gauge	7 ft 1⁄4 in (2,140 mm)
Leading dia.	3 ft 6 in (1,067 mm)
Driver dia.	5 ft 1 in (1,549 mm)
Wheelbase	17 ft 0 in (5.18 m)
Cylinder size	17 in × 26 in (432 mm × 660 mm)
Operators
Career
Operators	Great Western Railway
Class	3501 Class
Number in class	10
Withdrawn	1892
Disposition	All converted to 3201 Class

The GWR 3501 Class were ten broad gauge 2-4-0 locomotives built by the Great Western Railway.

They were built in 1885 as 2-4-0 T locomotives, but five were rebuilt in 1890 as 2-4-0 tender locomotives for working express trains between Exeter and Plymouth. They comprised the first ten locomotives of Lot 64, the remainder of which comprised ten similar locomotive Nos. 3511 to 3520 built to the standard gauge. In 1892 the broad gauge was abandoned and the locomotives were all converted to standard gauge tender locomotives, becoming a part of the 3201 Class.

2-4-0T locomotives

3501 (1885 - 1890)
3502 (1885 - 1890)
3503 (1885 - 1892)
3504 (1885 - 1892)
3505 (1885 - 1890)
3506 (1885 - 1892)
3507 (1885 - 1891)
3508 (1885 - 1890)
3509 (1885 - 1892)
3510 (1885 - 1892)

2-4-0 locomotives

3501 (1890 - 1892)
3502 (1890 - 1892)
3505 (1890 - 1892)
3507 (1891 - 1892)
3508 (1890 - 1892)

References

Allcock, N. J.; Davies, F. K.; le Fleming, H. M.; Maskelyne, J. N.; Reed, P. J. T.; Tabor, F. J. (1968) [1951]. White, D. E. (ed.). The Locomotives of the Great Western Railway, part one: Preliminary Survey. Kenilworth: RCTS.
Reed, P.J.T. (February 1953). White, D.E. (ed.). The Locomotives of the Great Western Railway, Part 2: Broad Gauge. Kenilworth: The Railway Correspondence and Travel Society. ISBN 0-901115-32-0. OCLC 650490992.
Russell, J.H. (1975). A Pictorial Record of Great Western Engines, Volume 1. Oxford: Oxford Publishing Company. ISBN 0-86093-398-9.
Waters, Laurence (1999). The Great Western Broad Gauge. Hersham: Ian Allan Publishing. ISBN 0-7110-2634-3.