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).
Retesting of a twice-modified Phantom Dynamo CH.85 for higher output.
| Identifier | ExFiles\Box 68\4\ scan0102 | |
| Date | 26th June 1928 | |
| To BY/Mtn. from EFC. X8664 EFC3/T26.6.28. PHANTOM DYNAMO CH.85 TWICE MODIFIED FOR HIGHER OUTPUT. We have now retested this machine since the second and increased tapering of the pole pieces, and we now find the output curve to be satisfactorily increased, though still not as high as the other machine OM.25.M. We therefore pass this machine as suitable for handing on to a customer for higher output at the higher speeds. We return the machine to you herewith so that you may dispose of it accordingly. EFC. | ||