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).
Measurement data for three different cylinder heads.
| Identifier | ExFiles\Box 86\1\ scan0025 | |
| Date | 26th July 1933 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/KT. 26.7.33. No.1 Cyl. Head. (Works). 1. 2. 3. 4. 5. 6. 102.5 102.5 103.5 102.5 103.0 101.5 No.2. Cyl. Head. (Test). 102.0 102.0 103.0 102.5 102.5 101.5 No.3. Cyl. Head. (Test). 101.5 101.25 102.0 100.75 101.5 102.0 -------------------- | ||