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).
The 15,000-mile test of car 22-G-V at Brooklands, noting performance figures and the resolution of a vapour-related starting issue.
| Identifier | ExFiles\Box 101\1\ scan0181 | |
| Date | 4th April 1936 | |
| X500 e To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}10/KW.4.4.36. 15,000 Miles Test - 22-G-V.{VIENNA} This car was taken on Brooklands to get performance figures. The conditions were unfavourable due to a high wind. The best lap speed obtained was 72 M.P.H. This confirms that the big bore 20/25 follows the big bore Bentley in that the increased performance is confined almost entirely to acceleration. While on the track no signs of petrol starvation or vapour lock were experienced. Under English conditions of testing the starting up trouble due to vapour appears to have been entirely overcome by the modification made by Hancock. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||