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).
Continued note on the inability to test for improvements due to the bedding-in period for piston rings.
| Identifier | ExFiles\Box 114\3\ scan0174 | |
| Date | 1st September 1936 | |
| - 2 - Rd/SEB/HR.1.9.36. Continued:- cannot tell on test whether any improvement has been made, because of the necessity for running the car long enough to allow the piston rings to become bedded in. Rd/SEB. | ||