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).
Turbulent cylinder head for a 25-29 HP engine and a recommendation for the Bentley large bore head.
| Identifier | ExFiles\Box 82\4\ scan0149 | |
| Date | 9th September 1935 | |
| To Dr. from E/JNR.{Charles L. Jenner} SECRET. E/JNR.{Charles L. Jenner}4/HP.9.9.35. c.c. RHS. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 25-29 HP. Engine. Please receive herewith:- LeC.4695 showing the turbulent type of cylinder head for the above. Also the rockers and rocker cover. We notice that on the Bentley large bore head on one side there are undersize nuts for bolting the head to the cylinder. Our recommendation is that room should be available so that the usual size nuts can be used here and spannered. LeC.4695 herewith. E/JNR.{Charles L. Jenner} | ||