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).
Standardisation test report for low rating front road springs.
| Identifier | ExFiles\Box 172\1\ img212 | |
| Date | 5th May 1931 | |
| RR 755 (10M) (6459. 24-10-30) 6/3165. COMPLETED 4.12.31. STANDARDISATION of CHASSIS PARTS. Date 5.5.31 Description of Parts. LOW RATING FRONT ROAD SPRINGS. X No. 5410 Origin. To improve riding comfort. Drawing No. Part List Experimental Test Report. These springs have 4.5" initial camber, loaded camber .5" positive. They have run 35 hours on the Bump test without failure. There is a slight tendency to take a permanent set. Road Test Report. Run 2,000 miles on 18-GIV. Tried by Sales and commented upon favourably. Further tests will be run in France before these springs are put on production. Weight of Old Part. Cost of Old Part. £ --- Weight of New Part. Cost of New Part. £ --- Difference per Car. Difference per Car. £ None Signature from Cost Dept. that above is correct. C/ch 18.11.31 C. 20.11.31. A Scrap and replace at all costs, including Chassis already delivered to Customers. B Scrap and replace on Chassis in Works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£......... Series.........£......... Series.........£......... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 23.11.31 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 18/5/31 | Agreed R.{Sir Henry Royce} The springs permit a top heavy car to roll and are spoilt by straight running qualities. Place R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 4.6.31. | Agreed WOr.{Arthur Wormald - General Works Manager} But pleased that further tests will take place. Wor.{Arthur Wormald - General Works Manager} C. | 14.5.31 | Agreed C. Keep down the GOOD & ROUGH ROAD C.G. with ample C. RG.{Mr Rowledge} | 4.6.31. | These springs appear to be overstressed and their reliability doubtful. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 21.5.31. | Agreed. DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 14.5.31. | Agreed. If the stress is too high it can undoubtedly be reduced by increasing the number of plates and re-arranging their thicknesses. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 15.5.31. | Agreed - in view of 10,000 miles test. Must have test before and after 10000 mile test. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 14.5.31. | Agreed AE. PN.{Mr Northey} | 18.5.31. | Agreed, but am hoping we can arrange more damping. PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||