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).
Failure of an exhaust valve on a 20 HP car, requesting an analysis of the steel.
| Identifier | ExFiles\Box 5a\2\ 02-page232 | |
| Date | 22th March 1930 | |
| Hl. From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} X5840. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}3/MJ.22.3.30. 25230 We are somewhat alarmed by the failure of one of the exhaust valves on the 20 HP. car now running in France. These are supposed to be in Firth's Crown Steel. Will you please analyse the undamaged valves to see if the components of this steel conform with the material we used on the "R" engine. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||