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).
Experimental parts received for a Watford EO6 magneto for noise reduction trials.
| Identifier | ExFiles\Box 70\4\ scan0198 | |
| Date | 26th November 1926 | |
| X8797.G EFC6/T26.11.26. RE WATFORD MAGNETOS. X.8796. We have to-day received from Mr. Maddocks a Watford EO6 magneto (No 9420) with the following experimental items :- (1) Ebonite pick-up. (2) Plain distributor bearing. (3) Bakelite distributor wheel and bakelite pinion. (4) Complete armature tunnel for noise reduction. This has been tried out by Mx.{John H Maddocks - Chief Proving Officer} and found to be more quiet than standard, though there is a tendency for the force required to advance and retard the lever to have increased and to be greater than we require. We are handing Mx.{John H Maddocks - Chief Proving Officer} for comparative trial, EO6 magneto No. 89458 with thicker armature cover plate. This is also we consider less noisy than standard. EFC. | ||