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).
Request to manufacture two experimental nitralloy steel wheels for a Hypoid axle, noting a warning about their performance.
| Identifier | ExFiles\Box 136\5\ scan0254 | |
| Date | 12th May 1930 | |
| RHC{R. H. Coverley - Production Engineer} [crossed out] c. Hs.{Lord Ernest Hives - Chair} ---------- V2066 BY6/G.12.5.30. Please make up two of the wheels in nitralloy steel (the blanks are already here) for the Hypoid axle. These are suggested as an experiment only, and should be used in conjunction with 5% case hardened nickel pinions. Mr. Mannock of the Nitralloy Limited, assures me that they have never succeeded in running two nitralloy gears satisfactorily. BY.{R.W. Bailey - Chief Engineer} By [signature] | ||