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).
F.10 blower issues and a list of urgent experimental work on various components.
| Identifier | ExFiles\Box 69\4\ scan0179 | |
| Date | 1st August 1927 | |
| RG.{Mr Rowledge} Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. EFC. X 8770 R2/M22. 8.27. RE. RR.F.10 BLOWER AND EXPERIMENTAL WORK GENERALLY. X.4550 X.8770 X.3804 Regarding the F.10. blower it is difficult to understand why we cannot have curved vanes which must be more efficient, also why the riveting of the shroud cannot be made satisfactory. Both of these points on the original model appear to have resisted failure up to speeds far beyond those at which we require to run. Regarding experimental work generally there are a number of matters as follows concerning which we are awaiting news, some of which are very urgent :- 20 HP. starter motor pinion improvements. RR.F. magneto drive coupling. " valve gear - rollerless rockers. " carburetter - two port air inlet and improvement to airway under chokes. " hand starter - Pearn's tappet type. Phantom. modifications to reduce cyl. distortion. " Battery ignition - scrubbing contacts, more flexible spring, umbrella rotor, etc.etc. " Carburetter - corrosion of air valve. " Valve gear modified to provide tappets above valves. " Proposed exhaust and inlet pipes for revised Phantom. " Slow running modifications. " Battery charge indicator. " Pedestal type pistons with single bolt. R.{Sir Henry Royce} | ||