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).
Engine's fail-safe mode, where power is reduced upon electrical or oil pressure failure until nearing the ground.
| Identifier | Morton\M8\ img022 | |
| Date | 1st June 1917 | |
| Top Annotations: 09-A TDA H, 903 28382, 3.mains, ENJUJO A9 To J.{Mr Johnson W.M.} from R.{Sir Henry Royce} It will be noticed that any failure of the electrical apparatus or the oil pressure means that the engine will still run, but at a reduced power until it approaches the level of the earth, when it will again assume its nominal horse power. Attached to Mr. Nadin's copy of this note is sketch No. Lec.817, illustrating the regulating device. We are asking Messrs. Hives & [strikethrough]Mr.[/strikethrough] Clark to test this in crude form. if possible. R.{Sir Henry Royce} | ||