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).
Quoting a previous document on higher output dynamos for the Australian market and suggesting a new design.
| Identifier | ExFiles\Box 165\6\ img236 | |
| Date | 4th December 1929 | |
| -3- Mr.Peat's memos concerning the higher output dynamo, dated 4.7.28, still exists :- "As a matter of fact I do not think the type of dynamo mentioned (in paragraph a) would be of the slightest use in Australia because extensive night driving is unusual owing to there being few roads of sufficiently good surface to permit of this and also owing to the risk of being out all night should some slight mishap occur. Many of the roads, while perfectly safe in the daylight at fairly high speeds, would be extremely dangerous at anything but low speeds at night. The people here who complain of the difficulty of keeping their batteries fully charged are of the type who drive only moderate distances and at fairly low speeds owing to road conditions, or the other type who use their car chiefly in town with much use of self starter and Klaxon. In both these cases it is low charging rate at low speeds of the dynamo which is the trouble. I should like to suggest that what we really require here, if it is possible to design same, is a dynamo which, by reason of its winding or other features cuts in earlier than the present dynamo but still retains the feature of decreased charge at high revs, incorporated with the green lamp idea, to meet the type of customer whose average speed approximates to that of maximum dynamo output". | ||