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).
Letter from Ethyl Export Corporation detailing the properties and composition of continental fuels like Esso and Azur.
| Identifier | ExFiles\Box 27a\4\ Scan087 | |
| Date | 27th March 1933 | |
| CABLEGRAMS: ETHYLPORT, LONDON. TELEGRAMS: ETHYLPORT, CHURTON. X/282 ETHYL EXPORT CORPORATION incorporated in the State of Delaware, U.S.A. with limited liability. ABFORD HOUSE, VICTORIA LONDON, S.W.1 Telephone: VICTORIA 5520 PRIVATE Head Office: 135 EAST 42ND STREET NEW YORK, U.S.A 27th March 1933. W. A.{Mr Adams} Robotham, Esq., Rolls Royce Ltd., Nightingale Road, DERBY. Dear Rm.{William Robotham - Chief Engineer}, With reference to the fuels you were asking me about when you were on your tour on the Continent. I can give you some information as to the Esso and Azur spirits. Esso has an Octane number of about 79 when tested under low temperature conditions, i.e. 100°C and 600 r.p.m. This is equivalent to the old Ethyl standard in this country. Azur runs up to 83/84 Octane and is what we know as a "ternary" blend, i.e. contains about 70% petrol, 15% dehydrated Ethyl Alcohol, 15% benzol. I am obtaining the details of Dynamin and will forward these on as soon as they come to hand. Esso is marketed on the Continent by a branch company of the Standard Oil of New Jersey, L'Economique. Azur is marketed by Desmarais Freres. If there is any further information you require, please let me know and I should be much obliged if you would keep the foregoing strictly to yourself. Kindest regards, Yours sincerely, Rod Banks. FRB/WNT | ||