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).
Comparative list of fuel consumption figures for various vehicles with different carburettor types.
| Identifier | ExFiles\Box 147\5\ scan0175 | |
| Date | 3rd December 1940 | |
| Rn{Mr Robinson}/Wym.{G. Harold Whyman - Experimental Manager}6/ET.3.12.40. - 2 - 12-B-V ZENITH RIFLE No.2. 16.86 m.p.g. 2317 M.P.G. Twin S.U. carbs. B-22-NV R.6 FF. 15.50 " No Record Twin S.U. carbs. VAUXHALL "10" 28.55 " 5816 m.p.g. Single Zenith carb. MORRIS "8" 39.72 " No Record. Single S.U. carb. STANDARD "8" 33.80 " No Record. Single Solex carb. STUDEBAKER. 19.12 " 3165 m.p.g. Commer (Lorry). 11.36 " 1856 " Rn{Mr Robinson}/Wym.{G. Harold Whyman - Experimental Manager} | ||