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).
Tyre wear on Spectre and Phantom models during tests in France.
| Identifier | ExFiles\Box 91\4\ scan0151 | |
| Date | 29th July 1935 | |
| 8300a To Sg.{Arthur F. Sidgreaves - MD} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/MJ.29.7.35. SPECTRECodename for Phantom III TYRES. Replying to Sg.{Arthur F. Sidgreaves - MD}6/E.24.7.35. Throughout our tests in France for the last five years, the average life of a rear tyre on the Phantom has been about 4,000 miles. In hot weather tyre wear is greatest, we have had a number of cases where 40/50 tyres have run less than 3,000 miles. Therefore, considering the intensely hot weather recently experienced and the increased performance of the car we do not consider the SpectreCodename for Phantom III rear tyre wear abnormal. We have had extraordinary wear of front tyres on the Phantom. The highly cambered Continental roads are generally responsible for this. It cannot be very serious if the front tyres have both done over 6,500 miles under Chateauroux conditions. However, we are investigating the matter. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||