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).
Providing a table of tension values along lines of force for dynamos.
| Identifier | WestWitteringFiles\G\October1921\ Scan15 | |
| Date | 14th October 1921 | |
| R.R. 235A (100 T) (S.H. 798, 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 ORIGINAL To R.{Sir Henry Royce} from EFC. c to CJ. EFS1/T14.10.21. X.294 - DYNAMOS. Answering your note R3/G11.10.21, the tension along the lines of force for various values of the induction between the limits 5,000 and 7,500 is, for uniform distribution of field, according to the following table :- B. F lbs/sq.cm. lbs/sq." 5,000 2.235 14.42 5,500 2.705 17.45 6,000 3.218 20.75 6,500 3.775 24.35 7,000 4.375 28.22 7,500 5.025 32.40 EFC. | ||