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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).
Statistical report of component failures across various models for the June Quarter and previous six months.

Identifier  ExFiles\Box 47\3\  Scan485
Date  1st June 1932 guessed
  
-12-

20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS.

IGNITION COILS.
June Quarter. C.C. 9 6 3 11 29 } 37
W.P. - 3 1 4 8 }
Previous " C.C. 9 3 9 - 21 } 26
W.P. 2 - 3 - 5 }
Six months. 20 12 16 15 63 63

Improved design of coil now standard and applicable all earlier cars. It is a definite improvement.

MAG. HIGH TENSION WIRES AND TUBES.
June Quarter. C.C. - - - 11 11 } 48
W.P. - - - 37 37 }
Previous " C.C. - - - 5 5 } 14
W.P. - - - 9 9 }
Six months. - - - 62 62 62

Shield for H.T. Tube now available See Depot Sheet Hd.{Mr Hayward/Mr Huddy}202.

MAGNETO FAILURES.
June Quarter. C.C. - - 8 4 12 } 18
W.P. - - 3 3 6 }
Previous " C.C. - - 2 5 7 } 13
W.P. - - 5 1 6 }
Six months. - - 18 13 31 31

RADIATOR LEAKS.
June Quarter. C.C. 3 5 1 11 20 } 27
W.P. - 1 1 5 7 }
Previous " C.C. - 6 3 10 19 } 26
W.P. 1 - 4 2 7 }
Six months. 4 12 9 28 53 53

Bronze water connection now being used to replace aluminium connection which corrodes on Ph.II rads. Depot Sheet Hd.{Mr Hayward/Mr Huddy}219.
  
  


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