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).
Performance test results for three Bentley cars at Brooklands track.
| Identifier | ExFiles\Box 155\1\ scan0091 | |
| Date | 3rd June 1933 | |
| x784 To SG.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Ru. c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to Ey. c. to Da.{Bernard Day - Chassis Design} c. to Hdy.{William Hardy} HS{Lord Ernest Hives - Chair}/Ru.4/KT.3.6.33. BENTLEY. BROOKLANDS TESTS. We have now the average of three Bentley cars on Brooklands track. BENTLEY NO.1. 4 DOOR SALOON. NORMAL WINGS. 6.6 C/R.{Sir Henry Royce} 11-43 Axle. 88 M.P.H. at 4000 R.P.M. Condition. Lap Speed. C.O. Closed. 87 M.P.H. C.O. Open (Silver Ghost Type.) 88.3 M.P.H. BENTLEY NO.2. 4 DOOR SALOON. FLARED WINGS. 6.35 C/R.{Sir Henry Royce} 10-41 Axle. 83 M.P.H. at 4000 R.P.M. Condition. Lap Speed. C.O. Closed. 85.13 M.P.H. BENTLEY NO.3. CLOSE COUPLED 2 DOOR. FLARED WINGS. 6.6 C/R.{Sir Henry Royce} 10-41 Axle. 83 M.P.H. at 4000 R.P.M. Condition. Lap Speed. C.O. Closed. 85.87 M.P.H. C.O. Open (New Type). 86.12 M.P.H. It is clear from these figures that we are between 1 & 2 M.P.H. slower with the lower axle ratio, which, however, gives better acceleration. We have tested the air cleaner and breather that is being fitted to the first fifteen cars and do not lose and maximum speed with it. | ||