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).
Note on the delay of the 15,000-mile smaller wheels test for car 21-G-IV due to the fitting of a new hypoid rear axle.
| Identifier | ExFiles\Box 101\4\ scan0030 | |
| Date | 26th April 1935 | |
| W/S - C. X500a Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/KW.26.4.35. 15,000 Miles test with the Smaller Wheels; 21-G-IV. ------------------ During Sg{Arthur F. Sidgreaves - MD}'s last visit to Derby it was decided to fit a hypoid rear axle to this car. As this necessitates a new axle it will delay the departure of the car for several weeks. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||