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).
Diagrams illustrating the method of shrouding a valve for air flow tests and modifications to an inlet valve.
| Identifier | ExFiles\Box 31\2\ Scan108 | |
| Date | 24th August 1933 guessed | |
| METHOD OF SHROUDING VALVE FOR AIR FLOW TESTS DIAG 1 0.5" SHROUD MADE OF SHEET METAL (.030" THICK) SOLDERED ON TO VALVE & EXTENDING HALF-WAY AROUND CIRCUMFERENCE DIAG 3 E 83904 INLET VALVE REGRINDING LIP | ||