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).
Recommending the use of Ferodo No.6 material for Ph.III clutches.
| Identifier | ExFiles\Box 141\1\ scan0122 | |
| Date | 17th April 1936 | |
| To By.{R.W. Bailey - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} c. to De. c. to Hdy.{William Hardy} +1180 HS{Lord Ernest Hives - Chair}/Smth.S/JH.17.4.36. Ph.III Clutches. We have now run clutches lined with "Ferodo No.6" material on two cars, and can confirm that it gives a very smooth take-up. It is a great improvement on the moulded material originally specified and apparently as good as the "American Tyco". We are not yet in a position to report on its wearing qualities, but Ferodo assure us that it will be much better in this respect than the moulded material. We recommend that we should use "Ferodo No.6" on all production Ph.III clutches. HS{Lord Ernest Hives - Chair}/Smth. | ||