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).
Knock rating test results for Estonian shale benzine and subsequent engine testing requirements.
| Identifier | ExFiles\Box 27a\4\ Scan142 | |
| Date | 27th June 1933 | |
| To Hs.{Lord Ernest Hives - Chair} (2 copies) [Strikethrough: C. Hs.{Lord Ernest Hives - Chair}] [Strikethrough: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Wor.{Arthur Wormald - General Works Manager}] 81282 Lr{Mr Ellor}/Dor.{Mr Dorey}2/AD27.6.33. ESTONIAN FUEL - SHALE BENZINE Further to our Lr{Mr Ellor}/Dor.{Mr Dorey}6/ADL2.6.33, we have now received knock rating test results on the above fuel and we should like you to test out the following mixtures on a Kestrel S. engine to determine (1) Effect on fuel consumption and jet settings. (2) Detonation. (3) Altered ignition setting, if any. (4) Power. The mixtures are as follows :- (a) Each sample with 4 ccs. TEL/gall. (b) Each sample with 10% Methyl Alcohol + 1.5 ccs/TEL/gall. According to laboratory tests, the above mixtures give 76 octane rating at 212°F.{Mr Friese} YNG Lr{Mr Ellor}/Dor.{Mr Dorey} LB | ||