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).
Table showing car speed test results in m.p.h. under various alterations from a standard condition.
| Identifier | WestWitteringFiles\Q\2-July1927-September1927\ 85 | |
| Date | 6th September 1927 guessed | |
| contd :- -5- STANDARD CONDITION OF CAR - HOOD DOWN + LOUVRED BONNET - C.O. OPEN - HIGH PRESSURE TYRES - UNDER-SHIELD AND TAIL IN POSITION. | Alteration from standard condition. | Speed m.p.h. | |-------------------------------------|------------------| | | Full lap. | Half mile. | |-------------------------------------|-----------|------------| | Plain bonnet - hood up. | 83.99 | 86.54 | | " " - " down. | 85.57 | 88.24 | | Standard. | 86.54 | 89.11 | | C.O. closed. | 83.33 | 87.7 | | Undershield off. | 86.09 | 88.67 | | Balloon tyres. | 85.72 | 88.24 | | Tail removed. | 85.6 | 88.24 | | Front wings removed. | 87.53 | 89.55 | Hs{Lord Ernest Hives - Chair}/W.A. Robotham. | ||