Investigating audible 'knocks' on Phantom chassis and engines.
| Identifier | ExFiles\Box 48\1\ Scan163 | |
| Date | 1st October 1925 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H. D. {John DeLooze - Company Secretary} Handwritten top right: +4190 EXPERIMENTAL REPORT. COPIES TO: RCJ (circled) BJ. (struck through) WOR. {Arthur Wormald - General Works Manager} (struck through) By E (struck through) Da. {Bernard Day - Chassis Design} (struck through) EF. (struck through) Handwritten below: EH OR RG {Mr Rowledge} (circled) Expl. No. 48040 REF. Hs {Lord Ernest Hives - Chair} 1/LG5.10.25. OBJECT OF TEST. Investigation of 'knocks' on Phantom chassis. TESTER. A. {Mr Adams} C. Lovesey. CONDITIONS. Test bench and road. SUMMARY OF TEST. There is an audible knock on a large number of Phantom engines. It will only be a matter of time before this is complained of. The knock appears to be caused by the pistons not being sufficiently flexible to allow for the expansion. | ||
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).