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).
Piston difficulties, cylinder tightness, and achieving a smokeless exhaust.
| Identifier | ExFiles\Box 24\1\ Scan002 | |
| Date | 10th June 1910 | |
| 10th June 1910. C.J. (2) to be very liable to work into one position. This may be a lucky one or a very unlucky one with regard to tightness of the cylinders. A great difficulty with pistons seems to be to make one that will work satisfactorily with a smokeless exhaust. If one may have a smoky exhaust piston troubles may be few and far between. F.H.R. | ||