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).
Performance and wear analysis of E.A.C. Servo with cast iron and Ferodo liners.
| Identifier | WestWitteringFiles\L\2Jan1924-March1924\ Scan17 | |
| Date | 24th January 1924 | |
| E.A.C. SERVO CAST IRON LINERS Left Graph: Title: VARIATION IN MECH GAIN OF SERVO WITH SPEED Subtitle: DRUM COOLED, EQUIVALENT PEDAL PRESSURE 100 LBS Y-Axis: SERVO MECH GAIN X-Axis: DRUM R.P.M Right Graph: Title: VARIATION IN MECH GAIN OF SERVO WITH TEMPERATURE Subtitle: DRUM NOT COOLED, EQUIVALENT PEDAL PRESSURE 100 LBS Y-Axis: SERVO MECH GAIN X-Axis: TIME RUN MINS Side Note: BOTH FOR AN EQUIVALENT PEDAL PRESSURE OF 100 LBS Table 1: RELATIVE WEARING QUALITIES CAST IRON AND FERODO Headers: CONDITION OF LINING, AVERAGE VALUE, NOTCHES WEAR per B.H.P. Hr ABSORBED BY SERVO - STANDARD LININGS: - .8 NOTCHES FERODO - .8 NOTCHES CAST IRON - ROASTED LININGS: - 4.5 NOTCHES FERODO - .6 NOTCHES CAST IRON Table 2: RELATIVE MECH. GAIN OF SERVO. (CAST IRON & FERODO) Headers: CONDITION OF LINING, AVERAGE VALUE, MECHANICAL GAIN OF SERVO - STANDARD LININGS: - 18.7 FERODO - 19 CAST IRON - ROASTED LININGS: - 29 FERODO - 20 CAST IRON | ||