Test report for Spring F.363, detailing Brinell hardness and run time results for 6 leaves.
| Identifier | ExFiles\Box 80\2\ scan0182 | |
| Date | 2nd August 1920 | |
| X262F SPRING F.363 - 2212 lbs. parallel - leaves tapered ends no nibs and slots - ground all over. Fitted on O.S. bump chassis 28.7.20. No. of leaves 6. | Brinell. | Remarks. | Time run. 1 | 415 | cracked 1 1/2" rear of clip. | 20 hrs. 45 mins. 2 | 444 | cracked 1 1/2" rear of clip 3 | 415 | broken under front clip. 4 | 415 | cracked " " " 5 | 415 | " " " | 22 hrs. 25 mins. 6 | 415 | O.K. Spring taken off 2.8.20. R.R. 285A (100 T) (S G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 843, 19-2-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2618 | ||
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).