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).
Bumping tests conducted on the front of a 20 HP chassis.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan22 | |
| Date | 7th July 1925 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} ORIGINAL EXPERIMENTAL REPORT. C COPIES TO: R.CJ BJ WOR.{Arthur Wormald - General Works Manager} By E.{Mr Elliott - Chief Engineer} Da{Bernard Day - Chassis Design} EP.{G. Eric Platford - Chief Quality Engineer} PN.{Mr Northey} OY. RG{Mr Rowledge} Expl. No. 4268 x 64-10 REF. Hs{Lord Ernest Hives - Chair}2/L97.7.25. OBJECT OF TEST. Bumping tests on front of 20 HP. chassis. TESTER. L. Swindall. CONDITIONS. Chassis was fitted with stiffer front springs and axle with front brakes. SUMMARY OF TEST. The dumb irons,shackles, and fixing for rear end of front springs gave no trouble. The average life of the front springs is 50% longer than the present standard when tested under similar conditions. Hs.{Lord Ernest Hives - Chair} | ||