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 report page discussing the bedding-in of piston rings during vehicle testing.
| Identifier | ExFiles\Box 144\3\ scan0113 | |
| Date | 1st September 1936 | |
| - 2 - Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}8/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. Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}8 | ||