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).
Blueprint for a modified rocker shaft for a super-sports engine.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan015 | |
| Date | 5th September 1928 | |
| FOR ALL OTHER DIMENSIONS SEE E77885. V411. 16.775 ±15 .475 ±5 5.687 ±5 11.187 ±5 .500 +20 .100 +20 SIX FLATS THUS. .187 +20 16.300 ±5 SECTION RR SECTION BB SECTION CC .812 ±5 .800 ±5 1.200 ±5 1.200 ±5 .800 ±5 .800 ±5 1.100 ±5 1.100 ±5 .800 ±5 .800 ±5 .812 ±5 .093 DIA. .187 (FLAT) MODIFIED ROCKER SHAFT. (SUPER-SPORTS ENGINE) THIS SHAFT MUST BE FITTED TO THE ENGINE IN SUCH A MANNER AS TO BRING THE FLATS ON THE TAPPET SIDE. SCALE ½ & 1/1 R-ROYCE, LIMITED PRINT ROOM, 5 SEP 1928 DERBY. | ||