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).
Comparing the acceleration and maximum speed performance of Sunbeam and Vauxhall cars.
| Identifier | ExFiles\Box 113\2\ scan0104 | |
| Date | 12th June 1925 | |
| R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF:Hs{Lord Ernest Hives - Chair}/Ru/LG14.12.25 The Sunbeam acceleration figures are interesting because they shew that though stress-lining can give speed, a large engine will always have an advantage for low speed acceleration. Thus the Vauxhall has better accelerating because it has a 4-litre engine to the Sunbeams 3-litre, though it may be inferior in maximum speed. As regards maximum speeds. Given that the speedo- meters are correct, we consider that there must have been an appreciable amount of wind in the cars favour to give this result. In any case, 117-MC seems to have a body which should be worth study from the point of view of stream-line. We should imagine that the wings are somewhat abnormal. contd :- | ||