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).
Request to test a special arched rotor blade for an ignition distributor on 20/25 HP and Bentley chassis, to improve breakdown voltage.
| Identifier | ExFiles\Box 61b\2\ scan0288 | |
| Date | 13th December 1935 | |
| c. Hs{Lord Ernest Hives - Chair}/Wst. WST r6119. BY/RD3/W.13.12.35. Ignition Distributor, Sec.8120. 20/25 H.P., and Bentley Chassis. Please receive herewith prints of :- D.54782. Rotor Blade. Will you please have one made up for test purposes. Will Hs{Lord Ernest Hives - Chair}/Wst. please note that we have had several breakdowns in rotors between the rotor blade and the screw immediately underneath it securing the cam to the driving spindle. Would you please test this special arched rotor blade to ascertain what improvement in breakdown voltage is achieved. BY/RD. | ||