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).
Unsuitability of the Mead & McLean Ventilators due to wind noise and water ingress, recommending the Fisher type instead.
| Identifier | ExFiles\Box 158\6\ scan0046 | |
| Date | 5th January 1939 | |
| r.{Sir Henry Royce} 1365 To By.{R.W. Bailey - Chief Engineer} c. to Ev.{Ivan Evernden - coachwork} Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}7/JH.5.1.39. re The Mead & McLean Ventilators. ref. CWW/MP. With reference to Mr. Wards letter of the 28th. inst. We still consider the Mead & McLean Ventilators an undesirable fitment for our cars. Our main objection is the amount of wind noise we get from the leading edge. On 9.B.5. where the ventilator is built into the door as part of the window, we also get all the water draining from the roof, at the corner of the windscreen through the open gap of the ventilator into the body. Messrs. Mead & McLean representative has already been out on two of our exptl. cars fitted with the ventilator, and has never been able to offer any solution to the wind noise problem. We ourselves have spent a considerable time also trying to cure wind noise, but have only succeeded by reducing the efficiency of the ventilator to nil. We should therefore be pleased if you would again let Messrs. Park Ward know that with regard to 3.B.50 we require the Fisher type, 10.B.5. the experimental type as shown to Mr. Ward, and for 30.G.7 again Fisher type. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} | ||