| Drumm Battery Train[1] | |
|---|---|
 Drumm train D at Bray | |
| In service | 1932–1949 |
| Built at | Inchicore |
| Replaced | Steam locomotives and carriages |
| Constructed | 1931 and 1938 |
| Entered service | A and B, 1932 C and D, 1939 |
| Scrapped | A and B, 1956/7 C and D, 1964 |
| Number built | 4 |
| Number scrapped | 4 |
| Formation | 2–car, articulated |
| Fleet numbers | A, B, C, D |
| Capacity | 140 passengers/set |
| Operators | Great Southern Railways CIÉ Railways Division |
| Lines served | Dublin Amiens Street-Bray Dublin Harcourt Street-Bray |
| Specifications | |
| Maximum speed | 60 miles per hour (97 km/h) |
| Weight | 85 tons/set |
| Traction motors | 2 |
| Power output | 600hp |
| Power supply | 272 Ni-Zn cells, series connected, 460-V. Drumm battery |
| Current collector(s) | Pantograph, for battery charging, supplied by DUTC |
| Multiple working | Up to 2 units with intermediate unpowered trailer |
| Track gauge | 1,600 mm (5 ft 3 in) See Rail gauge in Ireland |
The Drumm Battery Train was an Irish battery electric multiple unit developed in the 1930s which ran successfully in service on the Dublin to Bray route. The train's batteries were charged via an overhead pickup at the turnaround station.
The train was a successful implementation of the battery developed by Dr James J. Drumm.
- ^ Clements, Jeremy; McMahon, Michael (2008). "Battery electric powered units - Drumm Electric Multiple Units". Locomotives of the GSR. Colourpoint Books. pp. 308–317. ISBN 9781906578268.