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).
The performance of Bakelite car heater bushes and a request for modifications to the defroster system.
| Identifier | ExFiles\Box 137\2\ scan0040 | |
| Date | 2nd March 1938 | |
| 1158 To By/Ald.{F. Allwood - Experimental Design} from Rm{William Robotham - Chief Engineer}/Std Rm{William Robotham - Chief Engineer}/Std.14/MH.{M. Huckerby}2.3.38. We have tested the Bakelite car heater bushes which you detailed for us and these so far have been satisfactory, giving quiet running (we modified the spindle clearance to give a minimum of .0005.) We find that when coupled up to the defrosting ducts on 7.B.IV, the heater does not give adequate air streams on to the windscreen. We, therefore, wish to increase the dia-meter of the defroster blower rotor as far as possible and to move the defroster outlet 60° radially. Will you please detail the necessary new pieces and instruct one set. Rm{William Robotham - Chief Engineer}/Std. | ||