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).
Design of an inlet and exhaust manifold on the near side.
| Identifier | ExFiles\Box 109\3\ scan0103 | |
| Date | 18th April 1941 | |
| To Rm.{William Robotham - Chief Engineer} from Jnr.{Charles L. Jenner} c. to Rm{William Robotham - Chief Engineer}/HH. 700 Jnr.{Charles L. Jenner}3/SW.18.4.41. MYTH. Inlet & Ex. Manifold on Near Side. Herewith PL.546 showing the above and fitted with an Exhaust hot spot control valve. These pipes are for use with Cylinder Head - PL.518 and the horizontal S.U. Carburetter. Everything has been done in the design to bring the overall width to a minimum without altering the [strikethrough]cowalk[/strikethrough] [handwritten]bulkhead[/handwritten] shield, there is .3 clearance which is hardly enough if the engine mounting develops to a soft and free type. It will be seen that the thickness of the carburetter air intake is reduced and the heat insulating between the carburetter and inlet pipe is .25 thick instead of the customary .5 [handwritten]WASHER[/handwritten]. The location of the Exhaust Manifold is made via the inlet pipe, large clearance holes are shown instead of elongated slotted ones. Jnr.{Charles L. Jenner} [signature] Original to Rm{William Robotham - Chief Engineer}/HH. Prints to Jnr.{Charles L. Jenner} & Ashby. | ||