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).
Page 2 of a memo discussing the range of machines and a suggested alteration.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan117 | |
| Date | 2nd October 1928 | |
| EFCL/T2.10.28. -2- Contd. retarded position. Also the range of machines as received is usually so near 60° (within a degree) as scarcely to require the alteration suggested. EFC. | ||