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).
Proposal to change the induction pipe material from cast iron to aluminium for the 25-30 HP chassis.
| Identifier | ExFiles\Box 102\1\ scan0386 | |
| Date | 9th January 1936 | |
| Handwritten: G.W.H. Is the pipe on 21.GU brass or alum Rm.{William Robotham - Chief Engineer} X5D8 Typed: BY.{R.W. Bailey - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation} Da.{Bernard Day - Chassis Design} E/JNR.{Charles L. Jenner} Induction Pipe - 25-30 HP. Chassis. We find the above has been instructed by us in cast iron whereas since there is no actual exhaust jacketing on this pipe it might well be in aluminium. As the final alterations for drainage have not yet been made, and we understand the contraction difference on the pattern is so small that it does not matter, we propose to alter the material to aluminium, and the final pipe should, therefore, be so instructed. One precaution we think is necessary will be to increase the depth of the stud bosses about 50% on the induction pipe flanges, for which instructions are being sent. The detail drawing of the pipe in question is E.80676. Handwritten: The induction pipe on 21 GIV is brass with steel flanges brazed on. G.H.H. 13/1/36 E.{Mr Elliott - Chief Engineer} | ||