Report page detailing the accuracy of engine timing methods and devices.
| Identifier | ExFiles\Box 33\4\ Scan104 | |
| Date | 12th December 1927 guessed | |
| contd :- -2- Thus with 1/4" oil tube, multiplication = 5²/.25² = 400/1 Checking by the oil tube method has shewn that the timing device is only accurate to within 3° or 4° on either side of T. D. {John DeLooze - Company Secretary} C. when used by our own testers. Timing the magnetos by the pointer on the timing device is slightly more accurate - the piston movement being more rapid at 35° before T. D. {John DeLooze - Company Secretary} C. The timing device is accurate to within 3° of M. {Mr Moon / Mr Moore} A. {Mr Adams} when checked on the degree plate. Suggestions regarding the timing of F.XI and XII engines will follow in a later report. Hs {Lord Ernest Hives - Chair} /V.Halliwell. | ||
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).