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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).
Results of end-to-end tests on S.U. electric pumps with various pipe configurations.

Identifier  ExFiles\Box 27a\2\  Scan247
Date  14th September 1933
  
To Hs.{Lord Ernest Hives - Chair}

X2677

14.9.33.

RESULTS OF TESTS CARRIED OUT ON END TO END

S.U. ELECTRIC PUMPS.

(1) 1/4" dia. pipe along frame.
1/4" " from tap to filter
5/16" " " filter to pump.
5/16" " " pump to carbs.
Standard tap.
92 Pints/Hr.

(2) 1/4" dia. pipe along frame.
5/16" " from tap to filter.
5/16" " " filter to pump.
5/16" " " pump to carbs.
Standard tap.
100 Pints/Hr.

(3) 5/16" dia. pipe along frame.
5/16" " " from tap to filter.
5/16" " " filter to pump.
5/16" " " pump to carbs.
Standard tap.
122 Pints/Hr.

(4) - As (2) but tap used was opened up and both main and reserve pipe lines used.
120 Pints/Hr.

(5) - As (1) but with opened up tap
114 Pints/Hr.

(6) - As (3) with standard tap and flow taken through float chamber
82 Pints/Hr.

Hs{Lord Ernest Hives - Chair}/J.C.Bowering.
  
  


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