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).
Cell activation times and the issue of extra weight.
| Identifier | WestWitteringFiles\J\January1923\ Scan6 | |
| Date | 1st January 1923 | |
| Contd. -3- EFC2/T1.1.23. of the question owing to the extra weight, say 30 lbs, which it would always be necessary to carry. Then again, the cells are only 60% active after 15 minutes and not 100% until after some hours. EFC. | ||