Dynamo testing procedures for high RPM operation, checking for brush sparking and mechanical vibration.
| Identifier | ExFiles\Box 36\4\ scan 014 | |
| Date | 21th April 1920 guessed | |
| X.3014b -2- Contd ø (6) The dynamo shall now be run up to 3000 R.P.M., still on load, and shall show no abnormal brush sparking. Further, the mechanical vibration due to any want of balance shall not be excessive. (7) Examine dynamo for rubbing armature, slack bearings, cracked insulation, etc. LONG | ||
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).