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).
Tests on the 25 HP model's clutch pedal travel and flywheel strength.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan131 | |
| Date | 12th January 1931 | |
| ORIGINAL To R.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c.c. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c.c. to Ds. E.{Mr Elliott - Chief Engineer} c.c. to Hy.{Tom Haldenby - Plant Engineer} Ha/Gry.{Shadwell Grylls}2/MJ.12.1.31. x634. x5300. 25 HP. Lost Movement in Clutch Pedal Travel We have carried out tests on a standard flywheel and on the W.W. lightened flywheel with the new strengthened cover plate to test the clutch fingers and cover plate for bending. With the clutch springs choc-a-bloc we loaded the arm of the clutch operating shaft up to 120 lbs. and took readings of the angular movement of this shaft. From the graphs it will be seen that the new flywheel is stronger than standard in the ratio 1.84:1. Hs{Lord Ernest Hives - Chair}/H.{Arthur M. Hanbury - Head Complaints} Grylls. | ||