British Rail Class 44

Derby Type 4
British Rail Class 44

300px Preserved Class 44 number D8 at Darley Dale, on Peak Rail

Type and origin Power type Diesel-electric Builder British Railways’ Derby Works Build date 1959–1960 Total produced 10

Specifications Configuration 1Co-Co1 UIC class (1'Co)(Co1') Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Wheel diameter 3 ft 9 in (1.143 m) Minimum curve 5 chains (100 m) Wheelbase 59 ft 8 in (18.19 m) Length 67 ft 11 in (20.70 m) Width Height 12 ft 10 in (3.91 m) Loco weight Fuel capacity 840 imp gal (3,800 L; 1,010 US gal) Prime mover Sulzer 12LDA28-A Engine type Diesel Generator Crompton Parkinson GC426-A1 Traction motors Six Crompton Parkinson C171-B1 MU working ★ Blue Star Train heating Steam Train brakes Vacuum

Performance figures Maximum speed 75 mph (121 km/h) Power output Engine: 2,300 bhp (1,715 kW) At rail: 1,800 hp (1,342 kW) Tractive effort Maximum: Loco brakeforce

Career Operators British Railways Numbers D1–D10; later 44001–44010 Nicknames ‘Peak’ Axle load class Route availability 7 Withdrawn 1976-1980 Disposition Two preserved, remainder scrapped

The British Rail Class 44 or Sulzer Type 4 diesel locomotives were built by British Railways' Derby Works between 1959 to 1960. They were named after British mountains, and consequently nicknamed Peaks.

Overview

In part inspired by LMS prototypes 10000 and 10001, and by Southern Railway 10201-10203, the Class 44 diesels were some of the first big diesels commissioned for the British Rail modernisation project and were the precursors to the Class 45 and Class 46 locomotives of similar design.

Powertrain

A Sulzer 12LDA28-A diesel engine drove a Crompton Parkinson GC426-A1 main generator which supplied power to six Crompton Parkinson C171-B1 traction motors.

Train heating

When initially put into service the locomotives were fitted with multi-unit working and steam heating boilers for passenger service. They worked regularly over the West Coast Main Line for a couple of years, also between St.Pancras and Manchester.

Freight service

Once the Class 45 units were available the steam heating boilers were removed and the Class 44 locomotives were assigned to freight duties, largely in the East Midlands where they were all based at Toton, where they stayed until 1980.

Fleet details

Numbers		Name	Withdrawn	Disposal details
Pre-TOPS	TOPS
D1	44001	Scafell Pike	10/1976	Scrapped at BREL Derby Works (02/1977)
D2	44002	Helvellyn	02/1979	Scrapped at BREL Derby Works (10/1979)
D3	44003	Skiddaw	07/1976	Scrapped at BREL Derby Works (08/1976)
D4	44004	Great Gable	11/1980	Preserved at Midland Railway – Butterley
D5	44005	Cross Fell	04/1978	Scrapped at BREL Derby Works (11/1978)
D6	44006	Whernside	01/1977	Scrapped at BREL Derby Works (02/1978)
D7	44007	Ingleborough	11/1980	Scrapped at BREL Derby Works (11/1981)
D8	44008	Penyghent	11/1980	Preserved at Peak Rail Matlock Derbyshire
D9	44009	Snowdon	03/1979	Scrapped at BREL Derby Works (07/1980)
D10	44010	Tryfan	05/1977	Scrapped at BREL Derby Works (07/1978)

Preservation

Two locomotives have survived to preservation.

Number(s) (Current in bold)		Name	Livery	Location	Image	Notes
D4	44004	Great Gable	BR Green	Midland Railway - Butterley		-
D8	44008	Penyghent	BR Green	Peak Rail	100px	Privately owned