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).
Maximum speed tests and speedometer accuracy checks for several cars.
| Identifier | ExFiles\Box 155\1\ scan0104 | |
| Date | 4th July 1933 | |
| -2- Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}3/KT.4.7.33. On the road between Weedon and Towcester, the following maximum speeds were recorded on the speedometer :- 2.B.IV. - 98.5 m.p.h. 3.B.IV. - 99.0 m.p.h. 4.B.IV. - 100.0 m.p.h. The speedometers were checked on Brooklands at 80 m.p.h. and the correction for speedometer error gives the following true speeds equivalent to the above speedometer readings :- 2.B.IV. - 96.0 m.p.h. 3.B.IV. - 96.7 m.p.h. 4.B.IV. - 93.0 m.p.h. No trouble of any sort was experienced on the track with these cars. Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} | ||