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).
Wet weather driving performance, mud splatter, and wind tunnel test data for a streamlined car.
| Identifier | ExFiles\Box 84\1\ scan0207 | |
| Date | 27th November 1933 | |
| Rm{William Robotham - Chief Engineer} to Ev.{Ivan Evernden - coachwork} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}14/KT.27.11.33. We have been driving the streamlined car in wet weather, and whilst mud does not get thrown up on to the windscreen or on the windows of the car, it smothers the tail and the sides fairly comprehensively. I think that in addition to the rubber flap at the bottom of the front wing, if it is at all possible we should have some sort of streamlined step. When we drive the car down to Park Wards we will get them to chalk a mud line so that you will see with what you have to contend. You say nothing about side spare wheel carriers in your memo - I understand that customers can have these and they will be to the Peregrine design. With regard to the wind tunnel tests, the figure I wanted was the factor for the standard car and the standard car without wings. In your final note you gave the standard car's factor as being 1.4. In the first series of tests, when I was present, it was 1.3. Presumably some alteration has been made in the method of testing. [Handwritten notes] [Left Margin]: Cw not jet reached P.W. 30/11/33 [Bottom of page]: See N.Sch 3721? | ||