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).
Table showing coefficients of discharge for different petrol horizontal nozzles under three different head pressures.

Identifier  ExFiles\Box 36\1\  scan 054
Date  20th October 1917 guessed
  
PETROL HORIZONTAL - COEFFICIENTS OF DISCHARGE

Nozzle. Head 1. Head 2. Head 3.

A1 .814 .823 .826
A2 .783 .768 .796
A3 .728 .713 .720
A4 .653 .641 .637

B1 .828 .855 .972
B2 .800 .827 .844
B3 .759 .785 .796
B4 .721 .740 .749

C1 .8175 .810 .800
C2 .785 .797 .783
C3 .750 .787 .769
C4 .721 .770 .757

D1 .744 .715 .825
D2 .743 .702 .818
D3 .743 .694 .812
D4 .743 .677 .800
  
  


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