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).
Three proposed modifications to address overheating issues in the Phantom II model.
| Identifier | ExFiles\Box 165\4\ img088 | |
| Date | 4th September 1930 | |
| X3875 To Hs.{Lord Ernest Hives - Chair} from Sg.{Arthur F. Sidgreaves - MD} C. Wor.{Arthur Wormald - General Works Manager} C. PN.{Mr Northey} C. H.{Arthur M. Hanbury - Head Complaints} EP.{G. Eric Platford - Chief Quality Engineer} MX.{John H Maddocks - Chief Proving Officer} Hd.{Mr Hayward/Mr Huddy} BY.{R.W. Bailey - Chief Engineer} Sg{Arthur F. Sidgreaves - MD}3/E4.9.30. X: 766 X. 3875 X. 1085 X. 3220 X. 196 OVERHEATING - PHANTOM II I have read with interest the contents of Hs{Lord Ernest Hives - Chair}/Bul/AD2. 9.30 and I think there is a good deal of information contained therein which will be of value to departments and officials who deal with complaints and come in contact with customers. I thoroughly appreciate the investigations which have been made into this matter and I feel that they have served a very useful purpose. They have certainly led us into seeing the necessity for three modifications. (1) Altering the setting of the thermometer so that it comes on at a higher temperature. Personally, I am quite convinced that it was a mistake to have arranged this for the red light to show at about 92 instead of a higher temperature as on Phantom I, and I do not know why the alteration was ever made. (2) The desirability of reverting to four sliding shutters in the bonnet instead of two. Here again it appears to have been a mistake ever to have made this alteration, and still more so to have deleted the front ones instead of the back, and the reason for our having done this as per memo. received today from Hs.{Lord Ernest Hives - Chair} is very interesting and shows the importance of not going against the result of experimental tests. (3) New type canvas rubber belt in place of the whittle belt which apparently from the reports you have submitted is incapable of driving the fan efficiently at high speeds when it is most wanted. I think it is important that all three modifications should be introduced on production at the very earliest possible moment and I should be glad if Wor.{Arthur Wormald - General Works Manager} would go into this matter carefully with those concerned with a view to seeing what can be arranged in this direction. I am not quite sure if you are still exploring the possibilities of getting the air behind the radiator more easily by alterations to undershields etc. but I do feel that we should still explore every possible avenue as even with the modifications referred to above I believe that our margin of safety is too small when our cars are used under the most trying conditions. Sg.{Arthur F. Sidgreaves - MD} | ||