Hand-drawn graph plotting circulation in gallons per minute against engine revolutions per minute (RPM).
| Identifier | ExFiles\Box 11\2\ 02-page280 | |
| Date | 17th July 1929 guessed | |
| CIRCULATION GAL/MIN STANDARD TEMPERATURES 16°C Pent R.P.M Y-Axis (Circulation Gal/Min): 0, 10, 20, 30 X-Axis (R.P.M): 0, 1000, 1500, 2000, 2500, 3000, 3500 Graph line annotations: V {VIENNA} /S SERIES THERMOTT F.B. SERIES THERMOTT / 16°C SS {S. Smith} 16°C | ||
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).