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).
Criticism of the road springs on the 10,000 Miles Bentley 5-B-IV.
| Identifier | ExFiles\Box 82\3\ scan0189 | |
| Date | 12th April 1935 | |
| To Sg.{Arthur F. Sidgreaves - MD} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} Xroad a (3) Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}15/KW.12.4.35. 10,000 Miles Bentley - 5-B-IV. We understand from Hancock that there was some criticism of the road springs on this car when it was tried in London. The springs fitted are exactly the same rating and poundage as those at present being used on production. They are called lightened springs because they have less material in them. When the amount of material in the spring is reduced, the stress in the material is increased. We have however ascertained that these springs are likely to have a reasonable life, on the bump tests, before sending them to France. Having fewer leaves, there is probably less internal friction. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||