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).
Weekly report detailing the mileage and performance of Dunlop S.S. Cord Tyres on a 35 PK vehicle.
| Identifier | ExFiles\Box 45\1\ Scan317 | |
| Date | 30th June 1924 | |
| WEEKLY TYRE REPORT DUNLOP S.S. CORD TYRES ON 35 PK. TABLE DATA: | DATE. | SPEED-OMETER READING. | DAYS RUN. (miles). | TOTAL MILEAGE. FRONT. N.S. | TOTAL MILEAGE. FRONT. O.S. | TOTAL MILEAGE. REAR. N.S. | TOTAL MILEAGE. REAR. O.S. | REMARKS. | | 21.6.24. | 5016 | - | 5291 | 5291 | 670 | 1418 | | | 22.6.24. | 5307 | 291 | 5582 | 5582 | 961 | 1693 16 | N°56 (O.S.R.) punctured after 1693 miles. Replaced by A.I. N°56 repaired & refitted. | | 23.6.24. | 5473 | 166 | 5748 | 5748 | 1127 | 1859 | | | 24.6.24. | 5542 | 169 | 5917 | 5917 | 1296 | 2028 | N°57 worn to canvas after 5917 miles on N.S.F. N°X.10 put on. | | 25.6.24. | 6021 | 378 | 379 | 6396 | 1675 | 2407 | | | 26.6.24. | 6566 | 544 | 924 | 6674 267 | 2005 231 | 2737 215 | N°55 worn to canvas after 6674 miles on O.S.F. N°X.6 put on. N°56 worn to canvas after 2737 miles on O.S.R. N°X.9 put on. N°X.4 worn to canvas after 2005 miles on N.S.R. N°X.1 put on. | | 27.6.24. | 7054 | 492 | 1416 | 759 | 723 | 707 | | Average speed during tests 36 m.p.h. (approx). A.J.LIDSEY. 30.6.24. Handwritten notes: t3725 /4050 NL 52 | ||