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).
Provision of mushroom type rotors with altered keyways for chassis testing.
| Identifier | ExFiles\Box 32\5\ Scan075 | |
| Date | 20th December 1927 | |
| x8690 X7690 To RHC.{R. H. Coverley - Production Engineer} from EFC. c. Hs{Lord Ernest Hives - Chair}/AJL. EFC8/T20.12.27. MUSHROOM TYPE ROTORS. Herewith we hand you one of the mushroom type rotors with altered keyway. You will remember we previously handed to you two such for the two 10,000 mile chassis 12-EX and 9-G3, but one of these was put on 14-EX to complete the new battery ignition equipment for that test. Therefore, with the one we now hand you, you should have two for the 10,000 mile test chassis 9-G3 and 12-EX, when required. EFC. | ||