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).
Note on Mr. Hardy's remarks regarding the testing of Armstrong-Siddeley gears.
| Identifier | WestWitteringFiles\U\2January1930-September1930\ Scan075 | |
| Date | 14th April 1930 | |
| 3. DA{Bernard Day - Chassis Design}11/N.14.4.30 Cont'd.{John DeLooze - Company Secretary} We have also tried an Armstrong-Siddeley and Mr Hardy's remarks are based on this. When idling there was a 'Whirr' of gears, under load the gears were definitely much quieter than ordinary gears. DA.{Bernard Day - Chassis Design} | ||