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).
Recommendation to use 'Ferodo No.6' material for Ph.lll clutches based on its smooth take-up.
| Identifier | ExFiles\Box 93\3\ scan0101 | |
| Date | 17th April 1936 | |
| X 312 To Hy.{Tom Haldenby - Plant Engineer} c. to R.{Sir Henry Royce} c. to Da.{Bernard Day - Chassis Design} c. to Hdy.{William Hardy} Hs{Lord Ernest Hives - Chair}/Smth. & /Jh.17.4.36. Ph. lll 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 XCo". 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. lll clutches. HS{Lord Ernest Hives - Chair}/Smth. | ||