The Derby trolleybus system opened on , The trolleybuses operated by Derby Corporation led to the last Derby tram being eventually withdrawn from regular routes at the end of June with a special last journey on 2 July 1934. By the standards of the various, now defunct,
trolleybus systems in the United Kingdom, the Derby system was a medium-sized one, with a total of 11 routes, and a maximum fleet of 73 trolleybuses. The system was much cheaper to run than motorbuses but the end was signalled when proposed extensions to the network were blocked by protest to the additional poles and cabling that would be required. The system was closed on . There were over the years 165 Derby trolleybuses although this figure includes six that were second-hand. Five of the former Derby system trolleybuses are now preserved. One of them is at the
Trolleybus Museum at Sandtoft in Lincolnshire, a second one is kept at the
Westgate Transport Museum,
Belton, near Sandtoft, and a third is based (but privately owned) at the
East Anglia Transport Museum,
Carlton Colville, Suffolk. The other two are privately owned and stored at unknown locations in the UK. ==Services==