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).
Visit to Brooklands detailing fuel consumption tests and lap times.
| Identifier | ExFiles\Box 155\1\ scan0217 | |
| Date | 1st May 1936 | |
| X2320 Hs{Lord Ernest Hives - Chair}/ABR.{A. B. Roberts}3/JH.1.5.36. 6-B-IV - Visit to Brooklands. Consumption test on outward journey. Small carburetters and induction pipe fitted. Miles covered 142. Petrol used 10 galls. Cons. 14.2 m.p.g. Average speed 50.1 m.p.h. Consumption test on return journey. Large carburetters and induction pipe fitted. Miles covered 139. Petrol used 10 galls. Cons. 13.9 m.p.g. Average speed 46.3 m.p.h. Weather conditions on both journeys good. Time lost on return journey was due to the heavy traffic between Brooklands and St.{Capt. P. R. Strong} Albans, the running time from St.{Capt. P. R. Strong} Albans being the same both ways. Small carburetters and induction pipes. Lap times 113.2 secs. = 87.99 m.p.h. 113. = 88.15 " 112.6 = 88.46 " ¼ mile 20 secs. = 90 m.p.h. | ||