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).
Test log documenting the failure points and lifespan of various springs.
| Identifier | ExFiles\Box 79\3\ scan0180 | |
| Date | 20th November 1913 | |
| Wor{Arthur Wormald - General Works Manager}/Mcr7/L1514. Sheet. 6 SPRINGS. Piece No. Description. Time Hrs. Mins Results Reference F.812 Front Spring. off side. 3 - 36 Broke top plate front end. Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}19/L221013 " ditto. 44 Broke front end Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}27/L61113. " " 3 - 51 z Broke top plate " " " 2 - 38 " " " " " 3 - 9 " " " " " 2 - 49 Broke front end Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}5/L201113. " " 1 - 23 " " " " " 1 - 30 " " " " " 3 - 35 " " " " " 3 - 0 " " " " " 3 - 12 " " " Average Life before breakage. F812. Front Spring, near side. 1.hr 5 mins. Average over 62 " " off " 2 " 54 " " 24 | ||