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).
Tests to reduce heat in the Phantom II car's driving compartment, focusing on dashboard insulation and exhaust pipe lagging.
| Identifier | ExFiles\Box 136\5\ scan0047 | |
| Date | 2nd September 1932 | |
| X819 To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} c. Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} c. PN.{Mr Northey} BY.{R.W. Bailey - Chief Engineer} c. CX.{Major Len W. Cox - Advertising Manager} EP.{G. Eric Platford - Chief Quality Engineer} c. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} Hs{Lord Ernest Hives - Chair}/Les.5/KT.2.9.32. HEAT IN DRIVING COMPARTMENT P.II. We have been carrying out tests in order to reduce the heat in the driving compartment of P.2. cars. We find that the most important item is to prevent any hot air leaking into the front compartment. This confirms the results reported in Hs.{Lord Ernest Hives - Chair}1/LG11.12.23. THE DASHBOARD. We have covered the dashboard with an asbestos sheet as shewn in Fig.1 so that the air in contact with the dash does not heat the occupants of the car. Thermometers were placed just in front of both the drivers and passengers seats. The actual difference between the temperatures with the dash covering on and off is 2º C, as recorded by both thermometers. This is only one quarter of the improvement made from attention to avoid XXXX hot air leaks on the particular car used for these tests. A dashboard covering on the engine side would necessitate extensive alterations, owing to such components as the steering column, bijur tank, autovac, distribution box, body lights junction box, relay for the starter motor and the petrol filter, all of which protrude from the dash. It would be difficult to obtain and fit a satisfactory scheme that would be applicable to cars that are at present in customer's hands. On the body side of the dash we have to rely on the coachbuilders. There are numerous pipes and wires between the instrument board and the dash. It must be also possible to operate the bijur pedal. We feel that practically all customers would benefit largely from the reduction of hot air leaks, and should therefore hesitate in advising a dashboard covering. For exceptional cases we suggest that the coachbuilder should fit a scheme as shown on HgII. EXHAUST PIPE LAGGING. We have found that the lagging at present fitted on the exhaust downtake and intermediate pipe | ||