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).
Speed tests of different Bentley models at Brooklands in 1934 and 1935.
| Identifier | ExFiles\Box 155\1\ scan0173 | |
| Date | 25th April 1935 | |
| S/W. To Rm.{William Robotham - Chief Engineer} from Lp.{Mr Lappin} X1320 Lp.{Mr Lappin}8/LAM.25.4.35. Re: BENTLEY SPEEDS. (Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}16/KW.15.4.35.). B.2. November, 1934. BROOKLANDS. Lap Speed, two up, 1 min. 51 secs. 89.74 M.P.H. Half mile on top from 10 M.P.H. 36 secs. Weight without petrol 30½ cwts. Standard Head, Aerolite Pistons. 4.B.IV. November, 1934. BROOKLANDS. Lap Speed, two up, 1 min. 52 secs. 88.94 M.P.H. Half mile on top from 10 M.P.H. 36.8 secs. Weight without petrol 32½ cwts. High Compression Head, Aerolite Pistons. 4.B.IV. 16th April, 1935. BROOKLANDS. High Wind, Low Temperature. Lap Speed, two up, average of two laps, 1 min. 56 secs. 86.41 M.P.H. Half mile on top from 10 M.P.H., average of four runs, 37.1/5 secs. Weight, full petrol tank, 34 cwts. 10 lbs. Standard Head, Aerolite Pistons, Shell No.1. Petrol. Throttle not fully open. 4.B.IV. 24th April, 1935. BROOKLANDS. Lap Speed, three up, average of three laps, 86.62 M.P.H. (on one run) Weight, full petrol tank, 34 cwts. 10 lbs. Shell Petrol. Throttle not fully open. Lp.{Mr Lappin} | ||