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).
Instruction sheet detailing the wear results of a bone-grey fibre rubbing block after a road test.
| Identifier | ExFiles\Box 69\1\ scan0357 | |
| Date | 8th December 1924 | |
| RR 238 (150 BKS.) (SH57.29-6-20.) MP 224358 X. 4646. ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.B. 8-12-1924 Order No. WA{Mr Wallis}97 Customer's No. X4646 Bone-grey fibre rubbing block (Second sample) NOZC on 98NK. The above rubbing block has now completed to-date 14800 miles on chassis 98NK (recently returned from France). and has been measured. The measurements before running were .271" at the top and .269" bottom, and after running the above mileage they were .265" top and .262" bottom the max wear being .007". The condition of the block appeared quite satisfactory and the lubrication OK. Signed H.E.W. This Sheet must be filed on completion of the work. | ||