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).
Graph of piston displacement and relative pressure against crankshaft degrees.
| Identifier | Morton\M7\ img062 | |
| Date | 20th December 1923 | |
| LBS/D" RELATIVE I.O. E.C. E.O. I.C. CRANKSHAFT DEGREES FOR PISTON DISPLACEMENT ATS I.O. E.C. I.C. R.R. DRAWING ROLLS-ROYCE, LIMITED DRAWING ROOM. 20 DEC. 23 DERBY | ||