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).
The recommended fuel for civil Kestrel engines and a query about updating the standard to a minimum octane rating.
| Identifier | ExFiles\Box 27a\4\ Scan082 | |
| Date | 9th March 1933 | |
| Bp. RS{Sir Henry Royce's Secretary} c Hs.{Lord Ernest Hives - Chair} Y 12 82. EP{G. Eric Platford - Chief Quality Engineer}/AGR17/T9.3.33. Re. Fuel for Civil Engines. We recommend on our Civil engine Inspection Certificate which is enclosed in the Log Book for Kestrel Engines that Shell Aviation Mixture should be used. Will you please state whether in view of recent developments in the rating of fuels, this should now be amended, quoting a minimum octane rating. EP{G. Eric Platford - Chief Quality Engineer}/AGR | ||