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).
Removal of ribs on Phantom brake drums as part of a weight-reducing campaign.
| Identifier | ExFiles\Box 66\4\ scan0328 | |
| Date | 8th November 1925 | |
| To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to CJ. X8350 R2/M18.11.25. PHANTOM BRAKE DRUMS - WEIGHT REDUCING CAMPAIGN. X. 8840 X. 8350 We are not sure, but we think you proposed deleting the ribs on the large brake drums on the back axle. We have now little fear of heat, and think that if squeaks occur they can be reduced for less weight and cost than making the drums with these ribs. R.{Sir Henry Royce} | ||