This trolley bus regularly operates on the Society's Trolley Bus circuit at Ferrymead Heritage Park.

The following information is from Bradley Knewstubb's web-site - refer to the links page:

Make: British United Traction RETB 1
Bodywork: Dunedin City Transport Dept, wooden composite construction.
Weight: 12,044lbs    Dimension:  33ft 4 in by 8 ft
Electrical: Metropolitan Vickers
Motor: 135 bhp with over hung generator
Controllers: Electromagnetic contactors operated by 2 12v batteries in series (batteries non-regenerative). Acceleration not automatic, but on a 13-stage scissor arm system. Current limit relay for hill climbing
Braking: 2-step rheostatic; compressed air; and coasting brake for hill work (limits speed to 15mph forward or 2mph reverse on hills)
Tire Size:  110 x 20 (12 ply)   Air Pressure:  80psi (fully inflated)
Seating:  40 plus driver