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).
Request to obtain two modified springs from Messrs. Firths with a reduced unloaded camber.
| Identifier | ExFiles\Box 52\2\ Scan138 | |
| Date | 19th June 1926 | |
| To Wd {Mr Wood / Mr Whitehead} /Ms. from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 44429 Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 1/LG19.6.26. Will you please obtain for us from Messrs. Firths - two springs as follows :- We want Messrs. Firth to take the two standard springs of the poundage that we quote and reduce their unloaded camber from the normal of 2.5" to 1.400". Two springs :- 1 F.10618 - 2000 lbs. spring. 1 F.10619 - 2100 lbs. spring. Unloaded camber to be altered from 2.5" to 1.4". These springs give 3.5" Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} buffer clearance on 10 EX. Total rear wt - 2900lbs - 250 less camber required | ||