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 top gear acceleration curves comparing standard and deturbulate cylinder heads with a modified ignition governor.
| Identifier | ExFiles\Box 101\2\ scan0091 | |
| Date | 29th August 1936 | |
| HS.{Lord Ernest Hives - Chair} 22GV 27/29 AUGUST 1936 ACCELERATION CURVES. TOP GEAR. COMPARISON BETWEEN STANDARD & DETURBULATE CYLINDER HEADS. MODIFIED IGNITION GOVERNOR USED MILES PER HOUR. SECONDS. UNIT C16 IN 22GV AT BROOKLANDS STD. HEAD. IGN 13 1/2° E DETURBULATED HEAD. IGN 13 1/2° E | ||