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).
Letter to Mr Royce regarding noise issues caused by an idling side shaft in gear boxes.
| Identifier | ExFiles\Box 75\1\ scan0014 | |
| Date | 15th March 1912 | |
| re Gear Boxes. TBB8/L15312. Mr Royce 15.3.12. With reference to your note R6/D10312 concerning the noises caused by the side shaft running idle, I had some experience with this trouble at Napiers, and I thought perhaps you would be interested to know the following facts :- The old 40 and 60 H.{Arthur M. Hanbury - Head Complaints} type of gear box was of the system which you term the continental arrangement, having the side shaft in permanent engagement with the main drive to the propeller shaft, and we experienced a considerable amount of trouble owing to the noise which should have been expected from this arrangement. We were unable to overcome this noise and attempts were made to throw the pinion on the lay shaft out of gear by the striking mechanism, when the (Handwritten on left margin: X522) | ||