|Engine:||Sulzer 12LDA28 diesel|
|Power:||2, 300 hp (1, 715 kW)|
Although there were some early issues with the bogies which could crack or catch fire if maintenance was lax the Class 44s were a successful design and were followed by the uprated series production Class 45 and 46. All three classes of locomotives are known as the Peaks which came from the Class 44 being named after British mountains.
When they first entered service they were used on express passenger services though were soon supplanted by more powerful machines and spent most of their careers, especially the final years, on freight duties in the London Midland Region area . Scrapping began in the late 1970s as the Class 44s were surplus to requirements with the last leaving service in 1980 . Happily two have been preserved.
|Three views of the preserved D8 at Peak Rail's HQ Rowsley South|
 Brian Haresnape, Early Prototype & Pilot Scheme Diesel-Electrics (Ian Allan, 1981) p. 77
 John Vaughan, Diesels on the London Midland (Ian Allan, 1981) p. 62
 John Glover, BR Diary 1978-1985 (Ian Allan, 1985) p. 47