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).
Comparison of two Wraith models, 26.G.VI and 27.G.VI, regarding body weight, springs, and ride quality.
| Identifier | ExFiles\Box 9\5\ 05-page231 | |
| Date | 5th November 1938 | |
| 646 also 660x W/S - Cx.{Major Len W. Cox - Advertising Manager} c. to By.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}3/JH.5.11.38. WRAITH 26.G.VI. and 27.G.VI. In reply to your Cx.{Major Len W. Cox - Advertising Manager}15/KW.1.11.38. 27.G.VI. has a light body of 10 cwts. 1 qr. 7 lbs. and has been fitted with 1,000 lbs. rear springs. These have the extra inter leaf lubrication, now standard. 26.G.VI. has a heavier body, namely 11 cwts. 0 qrs. 21 lbs, and has been fitted with 1,100 lb. rear springs. These have not the extra spring lubrication, as far as we know, and the springs may be a little dry. We do not think the poundage difference in the springs is responsible for your trouble but would recommend increasing the bijur feed to the latest size which is 28000/23 - 2S meter valve. We think probably the difference of seating position in the two cars is largely responsible for the difference of ride but we would like to try the car to see what your complaint is. Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale} | ||