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 for the 'W' Series, detailing frame failures, modifications, and further tests.
| Identifier | WestWitteringFiles\M\2Jan1925-March1925\ Scan6 | |
| Date | 1st January 1925 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H.D. ORIGINAL EXPERIMENTAL REPORT. COPIES TO: (RCJ) (BJ) WOR{Arthur Wormald - General Works Manager} By E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} PN{Mr Northey}-DY{F R Danby} RG{Mr Rowledge} Expl. No. 8772 REF. Hs{Lord Ernest Hives - Chair}3/L07.1.25. OBJECT OF TEST. TESTER. Bumping tests on RAC. 'W' Series. R.{Sir Henry Royce} Bolton. CONDITIONS. Standard bump test conditions. SUMMARY OF TEST. The second frame has failed at the same point as the previous test. The life of the second one is up to the average 40/50 HP. We consider that we have proved the modification on 'W' series to be reliable on the bumping tests. Firths have been asked to supply further sets of 45" springs made to the same design as the latest 43¾". We are now proposing to carry out bumping tests on a 'V' series chassis. Hs.{Lord Ernest Hives - Chair} | ||