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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).
Letter to S.U. Carburetter Co. requesting four experimental needles ('XB9') with specified dimensions.

Identifier  ExFiles\Box 31\5\  Scan263
Date  3rd December 1934
  
+1487
Exptl. Dept.
HS{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation}17/KW.
3rd December, 1934.

The S.U. Carburetter Co.,
East Works,
Adderley Park,
Birmingham 8.

Dear Sirs,

Will you please supply 4 (four) experimental needles. These are a slight modification to the "XB8" needle which you supply for the 20/25 HP. car. Also you will notice they are .125 longer than the "XB8".

Dimensions in 'thous.' of an inch, measured at intervals of .125 from the shoulder.

To be marked "XB9".

1 2 3 4 5 6 7 8 9 10 11 12 13 14
99 99 99 92.5 86 82.5 80.5 79.5 78.5 77.5 76.5 75.5 74.5 73.5

Yours faithfully,

FOR ROLLS-ROYCE LIMITED.
  
  


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