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).
Further test involving machining the lips of a combustion chamber, which resulted in no noticeable gain in power.
| Identifier | ExFiles\Box 3\4\ 04-page160 | |
| Date | 11th January 1933 | |
| E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Y 4553b. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/KT.11.1.33. POWER OUTPUT. BENSPORT. Further to our Hs{Lord Ernest Hives - Chair}/Rs.{Sir Henry Royce's Secretary}1/KT.11.1.33. We carried out a further test which we have not mentioned in this report which consisted of machining away the lips of the combustion chamber as shown pencilled on the attached sketch. There was no noticeable gain in power with this modification. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||