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).
Part differences on the 'New Phantom' chassis No. 7-EX, with remarks and inspection notes.
| Identifier | ExFiles\Box 72\2\ scan0122 | |
| Date | 9th July 1925 | |
| -3- Copy of BJ1/H9.7.25 (Cont'd.{John DeLooze - Company Secretary}) CHASSIS No. 7-EX. The following parts are different from those of the present standard "New PhantomCodename for PHANTOM I" chassis: No. List of Parts. Remarks by Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}4/LG6.7.25. Remarks by S. when inspecting this chassis on 17.7.25. Present: CJ. BJ. PN.{Mr Northey} Cx.{Major Len W. Cox - Advertising Manager} H.{Arthur M. Hanbury - Head Complaints} Sg.{Arthur F. Sidgreaves - MD} CWB. 1. Aluminium induction pipe, induction bend and carburetter in place of cast iron and bronze. The saving in weight when using aluminium for these parts is approximately 20 lbs. The induction pipe is .25" smaller in diameter than the present standard. There is, however, no loss of power. We do not claim that there is any advantage with this induction pipe except reduction in bulk and weight. Noted. 2. Water heating is used in induction bend in place of exhaust heating. This enables us to do away with the troublesome choke valve in the exhaust pipe. With the limited experience we have had so far with water heating, it would appear that when the engine reaches its normal temperature there is no noticeable difference compared with the exhaust heated bend. The warming process, however, takes much longer. No objection is seen provided the extra running time of starter carburetter which will be required will not be detrimental to cylinder lubrication or lubricating oil in engine. In considering this modification doubtless due consideration will be given having regard to probable effects on the time for getting under way and efficiency of fuel consumption throughout. | ||