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).
Materials for Slipper Flywheel friction discs, comparing fibre with woven cotton and cork for the 20 HP and Phantom models.
| Identifier | ExFiles\Box 5\6\ 06-page016 | |
| Date | 4th October 1927 | |
| E.{Mr Elliott - Chief Engineer} from By.{R.W. Bailey - Chief Engineer} c.to Hs.{Lord Ernest Hives - Chair} Y5300 By9/J4.10.27. Slipper Flywheel. V5300 F8300 X356 20 HP. and Phantom. Referring to E2/M29.9.27, we are of course employing fibre for the Friction Discs on the new PhantomCodename for PHANTOM I design, but we do not propose to go back to fibre on existing designs because we know the trouble that we shall immediately be in. On that point there is no doubt at all. In regard to the 20 HP., we anticipate using fibre when we get your new design, but cannot do anything until the design in question materialises. In regard to thickness of fibre, we have actually specified .0625 thick. We are taking up the question of the use of woven cotton and cork, but would suggest that if cork is used, possibly the best way to utilise same would be in the form of cork inserts in an aluminium disc, as agglomerated cork has/in our experience proved itself to be reliable and satisfactory for friction washers. RECEIVED 12 OCT 1927 By.{R.W. Bailey - Chief Engineer} By | ||