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).
Design changes for a new, more silent Phantom Magneto and its application to the 20HP model.
| Identifier | WestWitteringFiles\P\2October1926-December1926\ Scan098 | |
| Date | 10th December 1926 | |
| ORIGINAL TO EFC. FROM R.{Sir Henry Royce} Copy to PHANTOM MAGNETO. X7791 Mr. North promises a more silent magneto, and one which affects the control less. There is to be - No magnetic effect, due to absence of sleeve, and the machine is to be equally as reliable as the present model. The new points are - (a) Larger armature and no sleeve. (b) Laminated extended pole shoes. (c) Plain bearing to distributor wheel. (d) Bakelite wheel and pinion. 20HP. MAGNETO. All this also applies to the 20HP. magneto, except the gearing. R.{Sir Henry Royce} | ||