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).
Inspection report detailing the condition of a 9-leaf spring after a test run, including specifications and test results.
| Identifier | ExFiles\Box 80\2\ scan0192 | |
| Date | 18th August 1920 | |
| X2628 SPRING F.391 - 2324 lbs. - parallel leaves without tie clips, no nibs or slots - ground all over, consisting of nine leaves. Fitted to Bump Chassis 10.8.20. (O.S.) Table: No. of leaves 9. | Brinell. | Remarks. | Time run. ------------------------------------------------------------------------ 1 | 444 | Small crack under rear clip. | 39 hrs. 50 mins. 2 | 461 | cracked front of front clip. | 3 | 444 | O.K. | 4 | 461 | cracked under rear clip. | 5 | 461 | cracked front of front clip. | 6 | 420 | " " " " " Broken 8" from rear end of leaf | 7 | 444 | " " " " " | 8 | 444 | cracked under rear clip. | 9 | 444 | O.K. | Taken off 18.8.20. [Watermark: ROLLS-ROYCE MADE AT DERBY] [Footer text: R.R. 235A. (100 T) S.G. 443. 19-2-20 G 267/28] | ||