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).
From R. to HS. discussing adjustments to the butterfly throttle and hand control.
| Identifier | WestWitteringFiles\G\October1921\ Scan65 | |
| Date | 17th October 1921 | |
| To HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} -2- R8/G17/10/21 Contd. extremely slowly at first, you will be able to adjust the butterfly throttle already provided to give satisfaction. It will not be necessary for the hand control to open this throttle more than just enough to start the car on a hill. The movement by this means can commence extremely slowly as we have found it advisable to do on the large car when we cancelled the governor. Mr. Elliott is re-arranging the design of this control accordingly, which you should get in about a week. R.{Sir Henry Royce} | ||