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).
Consumption test comparison between car models 21-G-IV and 17-G-IV.
| Identifier | ExFiles\Box 147\5\ scan0112 | |
| Date | 6th June 1934 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 4659 Hs{Lord Ernest Hives - Chair}/ GWH.{George W. Hancock - Head Chateauroux}3/KW.6.6.34. 21-G-IV. Consumption tests comparing 17-G4 with 21-G-IV. Miles run 112. Average speed 41.4 M.P.H. Model carburetters taken off test bed. Consumption 16.9 M.P.G. 17-G-IV. Miles run 112. Average speed 41.4 M.P.H. Oil type carburetters. Consumption 16.9 M.P.G. This car was 1 cwt. lighter than 21-G-IV. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||