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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 on Dunlop S.S. Cord tyre testing, detailing daily and total mileage, and wear issues.

Identifier  ExFiles\Box 45\1\  Scan318
Date  21th June 1924
  
Handwritten (top right): 21.624
WEEKLY TYRE REPORT. "DUNLOP" S.S. CORD ON 35 PK.
Handwritten (right margin): X4050

| DATE. | SPEED-OMETER READING. | DAYS RUN. (mileage) | TOTAL MILEAGE. FRONT. N.S. | TOTAL MILEAGE. FRONT. O.S. | TOTAL MILEAGE. REAR. N.S. | TOTAL MILEAGE. REAR. O.S. | REMARKS. |
|----------|-----------------------|---------------------|----------------------------|----------------------------|---------------------------|---------------------------|-----------------------------------------------------------|
| 13.6.24. | 2846. | 530. | 3122. | 3122. | 3045. | 3012. 184. | N°54 (N.S.rear) punctured - worn down to canvas. |
| 14.6.24. | 3177. | 331. | 3453. | 3453. | 514. | 3346. | |
| 15.6.24. | 3547. | 370. | 3822. | 3822. | 884. | 3715. | N°58 (O.S.rear) worn down to canvas after 3715 miles. |
| 16.6.24. | 3892. | 345. | 4167. | 4167. | 1229. | 294. 51. | N°56 punctured. X.4 fitted while N°56 being repaired. |
| 17.6.24. | 4397. | 505. | 4672. | 4672. | 1744. | 799. | N°59 (N.S.rear) worn to canvas after 1744 miles. |
| 18.6.24. | 4675. | 278. | 4949. | 4949. | 328. | 1076. | |
| 19.6.24. | 4839. | 165. | 5114. | 5114. | 493. | 1241. | |
| 20.6.24. | 5016. | 177. | 5291. | 5291. | 670. | 1418. | |

Average speed during tests 42 m.p.h. (approx).

Handwritten signature (bottom right): H.{Arthur M. Hanbury - Head Complaints} Lidsey
  
  


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