Rolls-Royce Archives
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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).
Comparing an E.A.C. fixed choke carburetter against a Knave type, including a diagram of an alteration to the deflector on the air valve.

Identifier  ExFiles\Box 72\1\  scan0214
Date  29th May 1924
  
R.R. 403A (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary}
EXPERIMENTAL REPORT.
Expl. No. 9080
REF: 29.5.24.
E.A.C. FIXED CHOKE TYPE CARBURETTER.

R.P.M. | E.A.C. B.HP. | Knave. B.HP.
2000 | 90 | 96
1500 | 72 | 78
1000 | 49 | 54
750 | 39 | 42
600 | 31 | 34

ALTERATION TO DEFLECTOR ON AIR VALVE.

Diagram annotations:
.625
1.400
TUBE SWEATED ON TO DEFLECTOR

Watermark text:
DERBY CONDEMNED
MADE AT CROXLEY
  
  


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