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).
Requesting an increase in the air gap of a 56 coil P.2. dynamo for re-testing.
| Identifier | ExFiles\Box 62\3\ scan0210 | |
| Date | 3rd March 1931 | |
| X6076 RHC.{R. H. Coverley - Production Engineer} from EFC. EFCl/AD6.3.31. X.6076. 56 COIL P.2. DYNAMO WITH ARMATURE WITH WIDER AND DEEPER SLOTS. We are handing this machine back to you. Will you please now arrange to have the air gap increased from the present .015" to the standard .022" after which the machine should be returned to us for re-test. EFC. CAP. Completed 10/3/31. | ||