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).
Complaints regarding noise from heavy valves on the Phantom II model, detailing cases and profit.
| Identifier | ExFiles\Box 131\2\ scan0166 | |
| Date | 4th May 1938 | |
| - 3 - Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}16/G.4.5.38. PHANTOM 11. Complaints of noise from heavy valves - Depot modification .- There has been 153 cases dealt with. 5 only which have not been quite satisfactory. 90% of these the owners have paid for instead of Company's policy. Net profit from 6 valves fitted 4/- " " 12 " 8/- Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||