From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
On the ventilation testing of a louvred dynamo end cover for the 25/30 HP model.
| Identifier | ExFiles\Box 168a\3\ img332 | |
| Date | 24th December 1936 | |
| 6142 To By/RD. from Rm{William Robotham - Chief Engineer}/Wst. Rm{William Robotham - Chief Engineer}/Wst.4/AP.24.12.36. Louvred End Cover for 25/30 HP. Dynamo to RR.Sch.941. This end cover has now been tested in respect to its ventilation qualities, and we find it to be no worse than the standard gauze window end cover. Rm{William Robotham - Chief Engineer}/Wst. | ||