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).
'X' shaped 4th cross member and braking system modifications for the 20 HP car.
| Identifier | ExFiles\Box 67\1\ scan0209 | |
| Date | 3rd December 1927 | |
| BY.{R.W. Bailey - Chief Engineer} from DA{Bernard Day - Chassis Design}/EY c. to BJ. Hs.{Lord Ernest Hives - Chair} 48380 DAL/M3.12.27. X. 5840c X. 8380 X. 5420 INDIA 3. FRAME. We send herewith N.schs. 2518/9. shewing the 'X' shaped 4th. cross member for the next 10,000 miles 20 HP. being used in conjunction with the longer frame side members. It will be seen that slight modifications are needed to the braking system, and probably to the front anchorage of the rear springs. Particulars of both of these will be sent in a short while, and in the meantime we do not wish you to work to the outline of the braking scheme indicated on these drawings, as it may be modified as a result of further investigation. As this piece is intended for the next 10,000 miles 20 HP. car it will be necessary to proceed with the manufacture of it at once without waiting for the model of the Phantom cross member, which is we expect coming through. DA.{Bernard Day - Chassis Design} | ||