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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
  
  
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).


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