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).
The deletion of lock plates on the Phantom III front brakes and the use of spring washers instead.
| Identifier | ExFiles\Box 92\4\ scan0256 | |
| Date | 12th November 1936 | |
| 306 TO E.{Mr Elliott - Chief Engineer} from RHC{R. H. Coverley - Production Engineer}/HPS.{Horace Percy Smith - Experimental Factory Mgr} [text struck through in red] C. to Lm/Bm. [text struck through in red] C. to RPV. [text struck through in red] C. to Rm.{William Robotham - Chief Engineer} C. to RHC{R. H. Coverley - Production Engineer}/AES. [text struck through in red] RHC{R. H. Coverley - Production Engineer}/HPS.{Horace Percy Smith - Experimental Factory Mgr}1/CB.12.11.36. Martindale Is this OK.? Rm{William Robotham - Chief Engineer} PH. III FRONT BRAKES. Deletion of Lock Plates. Further to memo Ref. No. RHC{R. H. Coverley - Production Engineer}/RH.{R. Hollingworth}1/RTM.15.2.36, it was suggested :- Delete drilling - 20 - 161 dia. holes from Carrier Plate G.83397/8, also 20 Lock Plates G.83404, and fit spring washers, as the Lock Plates secure the nuts, and there is nothing to prevent the bolts from turning. All Experimental cars have been built up with spring washers (and not peaned over), including 10,000 miles test, and no troubles have been experienced. Herewith drawing Ex.I.8, showing points raised. R.{Sir Henry Royce} Hollingworth. | ||