342 was one of a batch of 10 Sunbeam F4s that entered service between October and December 1951 which replaced the 10 Sunbeam MS2’s (155 -164) dating from 1933. Between 1951 and 1959 these vehicles predominantly worked Walsall’s share of the joint service to Wolverhampton. However, in 1959 they were ousted from this route by eight second hand trolleybuses purchased from Hastings.
342 was originally a conventional rear-entrance double-deck trolleybus but in 1965 she was used in an experiment whereby the chassis was lengthened using motorbus components and the body was suitably adapted to become a 65 seat capacity vehicle. This was the only vehicle in this batch so treated.
Walsall Corporation Transport were amongst a number of municipal fleets amalgamated into the West Midlands Passenger Transport Authority in the early autumn of 1969. The future of 46 trolleybuses amidst a fleet of 2,000 motorbuses looked bleak and it was no surprise when the WMPTE announced plans to abandon the system.
342 survived in service until the last day of trolleybus operation on 3 October 1970 whereupon she was purchased by the Reading Transport Society and taken straight to Sandtoft for storage.
Once trolleybus operations got underway at Sandtoft, 342 was a regular service vehicle in the early days. Although in a sound condition she needs some bodywork and mechanical attention before re-entering service. In May 2006 342 was taken to undercover storage at a farm in Thorpe-In-Balne and remained there until 22 May 2011 when she returned to Sandtoft to take part in the BTSs 50th anniversary celebrations. With further tempoary undercover accommodation now available at Sandtoft, 342 will remain at the museum and an assessment of work required to return her to service will be carried out in the forseeable future.