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 standardization of the Buttress type tyre tread for 20 HP & 40/50 HP chassis.
| Identifier | ExFiles\Box 45\2\ Scan034 | |
| Date | 19th May 1927 | |
| D/BP c. to Test Dept. c. to Hs.{Lord Ernest Hives - Chair} X4050 BY/Cgh{W Clough}8/G.19.5.27. re TYRES FOR 20 HP. & 40/50 HP. CHASSIS. -------------------------------------- With reference to D/BP/13/B.18.5.27. from which we note that you are arranging for Dunlops to produce a further supply of tyres with traction tread for the Phantom, so that the triple stud type of tyre can be introduced on both chassis simultaneously, will you please let us know what point in our chassis programme the Buttress type tread will become standard, so that we can arrange our instruction matter to suit. BY/Cgh.{W Clough} | ||