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).
Fan noise on the Phantom Chassis G2B series and the results of tests to resolve it.
| Identifier | ExFiles\Box 14\7\ Scan005 | |
| Date | 17th August 1928 | |
| To BY.{R.W. Bailey - Chief Engineer} From Hs.{Lord Ernest Hives - Chair}GWH.{George W. Hancock - Head Chateauroux} Hs{Lord Ernest Hives - Chair}/GWH{George W. Hancock - Head Chateauroux}/LG17.8.28. X7220 PHANTOM CHASSIS. X7220 X7250 On G2B. series, the engine is pushed forward, bringing the fan .500" nearer to the matrix of the radiator. This produces an objectionable noise when the shutters are full open. We have carried out tests to cure this and find that the fan must be brought back to its present position i.e., the top fan blade 1.500" from matrix (nearest position). there is a slight noise still, but not objectionable. Hs{Lord Ernest Hives - Chair}/GWHI. | ||