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).
Japan 3 project, comparing a 6-cell in-line battery with the standard 20/25 battery arrangement.
| Identifier | ExFiles\Box 58\3\ Scan176 | |
| Date | 6th February 1931 | |
| To Da. {Bernard Day - Chassis Design} from EFC. {E. Fowler Clarke - Electrical Engineer} c. Wor. {Arthur Wormald - General Works Manager} c. Hy. {Tom Haldenby - Plant Engineer} Hs. {Lord Ernest Hives - Chair} X6107 EFC {E. Fowler Clarke - Electrical Engineer} 4/AD6.2.31. X.6107. JAPAN 3. BATTERY. Referring to your Da {Bernard Day - Chassis Design} 2/M23.1.31 we have satisfied ourselves (as already mentioned to you in our EFC {E. Fowler Clarke - Electrical Engineer} 3/ADL7.11.30) that there is no appreciable advantage from the point of view of leakage with the 6 cell in line battery over the arrangement of wells as at present standard on the 20/25 battery. On the same day as we sent you our EFC {E. Fowler Clarke - Electrical Engineer} 3/ADL7.11.30 in partial answer to your Dal/M13.11.30 (under cover of which you sent N.Scheme 3169) we also wrote to Messrs. P & R. {Sir Henry Royce} enquiring as to whether there would be any advantage to us on the score of price or in any other way intrinsically connected with the battery. with the utilisation of the 6 cell in line arrangement of one piece 6-compartment moulded cell case container. Their answer, which I do not think we communicated to you at the time, was to the effect that so far as price is concerned there would be absolutely no difference. The moulding costs would be about the same and the sections and everything else would be identical. Incidentally, they remarked that actually they would have thought that the existing layout would be more suitable to us as they understood that the space available for the battery was somewhat limited. The choice of arrangement may therefore depend upon considerations entirely external to those of the battery itself. EFC. {E. Fowler Clarke - Electrical Engineer} | ||