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).
Air Ministry instructions for testing Goshawk, Griffon, Merlin, and Kestrel engines with new 80 octane fuel.
| Identifier | ExFiles\Box 27a\4\ Scan041 | |
| Date | 19th December 1932 | |
| COPY. AIR MINISTRY, LONDON, W.C.2. 208641/32/R.D.E.2.b./H.W. 19th December, 1932. Running at 80 Octane Fuel. Gentlemen, I am directed to state that in anticipation of the improvement shortly to be introduced in Service fuel, all tests of Goshawk, Griffon and Merlin engines are to be carried out with a fuel having an octane value of 80 at 150°C. jacket temperature on the Ethyl Series 30 engine. 2. Will you also carry out rating test on the Kestrel engines Series IB, IIS and IIM.S. at the proposed normal speed of 2,500 r.p.m. with the new fuel. I am, Gentlemen, Your obedient Servant, (Sgd) H.{Arthur M. Hanbury - Head Complaints} Wood. for Assistant Director/R.D.E. for Director of Technical Development. Messrs. Rolls-Royce Ltd., Derby. | ||