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).
Record card for tests on a Whittle fan belt.
| Identifier | ExFiles\Box 55\2\ Scan003 | |
| Date | 21th February 1912 | |
| X493 Section. 1000 DESCRIPTION:- Whittle fan belt. Date sheet from office. Date Works instruction. Reported T.D. office. Date received. Material received. Reported to office. First Column: Date. Miles. Report. Instruction from T.C. meeting 2067. 24/11/11 | 2 received for testing. 27/11/11 | Wait test a report running on 1718. 4/12/11 | 180 | Running satisfactorily 6/12/11 | 280 | " 13/12/11 (11-12-11) | Testing on 1718 & 1600. T.C. 97 - To be reviewed in 2 months time. Second Column: Date. Miles. Report. 13/10/11 | T.C.-98. Of Edohan move. Having to run on all trials cars. 29/12/11 | Waiting for more belts. 11/1/12 14/1/12 | 6 Belts received. 1 fitted to 1731, 1909, 1961. 1 despatched on 1600 trial. Running OK must be well made. 6/2 21/2/12 | Testing for noisy. | ||