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).
Instructions detailing wear measurements after 10,000 miles and observations on armature end-play.
| Identifier | ExFiles\Box 50\5\ Scan378 | |
| Date | 29th June 1920 | |
| RR 2381(50 BKS.) (BH57.29-6-20.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. 57 To________________ 19__ Order No.___________ Customer's No. 2 wear is as follows (covering over 10,000 miles running.) :- Positive .0185", Negative .0085", Control .020". There is a considerable amount of armature end-play in this machine (about .050") which at least, has not been detrimental to the dynamo itself. Signed: H.R. This Sheet must be filed on completion of the work. | ||