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).
Inquiry regarding a 16% increased reading from instrument No. A.677 N.800 after a 10,000-mile test.
| Identifier | ExFiles\Box 59\2\ Scan048 | |
| Date | 1st July 1930 | |
| EFC2/ADL1.7.30 contd. -2- In regard to instrument No. A.677 N.800 14/52 removed from 23-ex after 10,000 mile test, this has been found to give a considerably increased reading in fact nearly as much as 16% increase at 30°C. We do not know the reason for this -- it seems too much to put down to a decrease in the main spring control, so we must enquire of GWH.{George W. Hancock - Head Chateauroux} if any alteration has been made to the instrument at any time since we previously tested it and handed it over. EFC. | ||