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).
Response to a query from Sales regarding the power-to-weight ratio for 'SS' and 'India-4' models.
| Identifier | ExFiles\Box 65a\2\ scan0216 | |
| Date | 26th January 1929 | |
| To BY/CGH.{W Clough} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X7770 X5770 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG26.1.29. Replying to your query - as follows :- "Sales wish to know the power weight ratio of 'SS{S. Smith}' and "India-4. At what speed do they want it? Max. HP. against weight without considering axle ratio means nothing. Do they want effective HP/ton mile for, various speeds for 40/50 and 'SS{S. Smith}'. We do not know what India-4 is going to be yet. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||