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).
Requesting the modification of chassis pistons E.17764 and 17792 by removing material from the crown.
| Identifier | ExFiles\Box 35\2\ scan 070 | |
| Date | 29th April 1919 | |
| X2748 To Mr. Cheetham from BY/JH. c. to Mr. Swift. c. to Mr. Shelton. c. to Mr. Hives. c. to Mr. Coverley. BY/JH2/T29/4/19. CHASSIS PISTON. Will you please arrange to modify the chassis piston E.17764 and 17792 by removing .100 off the crown of the piston and modifying the core box to suit. Will Mr. Hives please check that this modification to piston E.17764 allows a compression space of 25 c.". BY/JH. [Text from sketch] reduce by .100 4.625 5/8R | ||