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).
Alterations to the hole for the water rail on the wheelcase end, with reasons provided.
| Identifier | ExFiles\Box 118\1\ scan0147 | |
| Date | 15th March 1940 guessed | |
| 115 RE Continued. 5. Hole for Water Rail altered. View on Wheelcase end. .587 altered to .662 2.050 altered to 1.975 55° altered to 45° .100R altered to .150R. Reason 1. This boss and hole are no longer required. 2. Due to fitting of distance pieces on tappet covers. 3. Due to castings building up at this point it is necessary to machine the valve pocket. 4. To facilitate fitting of studs. 5. To conform to previous c'case. Alteration to Pattern required. - (it commenced) Prints to Patternmaker. Shaw 16/6 | ||