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).
Continued discussion on dynamo reliability, proposing solutions and noting issues with batteries and belt tension.
| Identifier | ExFiles\Box 36\4\ scan 228 | |
| Date | 1st July 1921 | |
| Contd. -3- RL/G1.7.21. To carry two loaded spares does not meet want of reliability. My own impression is that the lengthening of the dynamo and the cutting-in at the earlier speed is not the real cause of the trouble, but it is the want of reliability of the various parts, and the curing of this want of reliability would, to a great measure, make the equipment passably satisfactory, i.e. the fitting of a thoroughly efficient and reliable switch and reliable fuses, and the removal of the smaller defects in the dynamo, the dissatisfaction would be reduced more than is realised. Only in exceptional cases would the longer dynamo be needed, especially as we are gearing cars so much lower than in the past, a cutout which acts badly and late would spoil the cutting-in of the any dynamo. It must also be remembered that some want of reliability has occurred in the Exide batteries, and the difficulty of keeping the dynamo belt with the right degree of tension. Both of these matters, have, I understand, been satisfactorily dealt with and been standardised. R.{Sir Henry Royce} | ||