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).
Broken bolt on a 20 HP Slipper Flywheel following a failure in France, detailing the probable cause and the proposed solution.
| Identifier | WestWitteringFiles\N\2July1925-September1925\ Scan52 | |
| Date | 25th August 1925 | |
| TO HS.{Lord Ernest Hives - Chair} FROM R.{Sir Henry Royce} Copy to GJ. PY. 20.HP. SLIPPER FLYWHEEL. X.5300 (FAILURE IN FRANCE.) Regarding the broken bolt on the 20.HP., this was probably caused through difference of friction, or seizing between the two halves of the stiffer wheel. We want this to be impossible by dowelling the two halves, and increasing the clearance in the pressure bolts. (See drawing by E.{Mr Elliott - Chief Engineer} sent yesterday.) R.{Sir Henry Royce} (RECEIVED STAMP) | ||