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).
Experimental modification to the 25-HP exhaust manifold to address a cracking issue.
| Identifier | ExFiles\Box 104\2\ scan0109 | |
| Date | 10th September 1934 | |
| To BF. from E/JNR.{Charles L. Jenner} c. to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} [Handwritten in red] WYMAN ! [Handwritten] We should run one of these E/JNR.{Charles L. Jenner}3/HP.10.9.34. re 25-HP. Exhaust Manifold. We send you herewith LeC.4099 showing the present exhaust manifold made with the addition of two webs to stiffen the end bends. This is to be tried experimentally and it may be possible to make a casting by the addition of loose pieces to the pattern. We have had no complaints from customers with this pipe but GWH.{George W. Hancock - Head Chateauroux} had one cracked in France. E/JNR.{Charles L. Jenner} | ||