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).
Hand-drawn diagram showing the layout and dimensions of a Hispano front brake system.

Identifier  ExFiles\Box 22\1\  Scan033
Date  1st February 1924
  
HISPANO FRONT BRAKE. 15.76 DIA. THIS IS THE DIA. IN MEAN BRAKING POSITION. I.E. WHEN SHOES ARE JUST IN CONTACT WITH DRUM. 60°. OPERATING CAM. FERODO EASED AWAY 3/4" EACH END. 112° (FERODO). SHOE. ANGLE BETWEEN SHOE PIVOT & START OF FERODO. 5.5 RAD. 6.70 RAD. 38°. 8°36'. 29°24'. 2.00. 76°. 9.70. FRICTION SURFACE 1 SHOE = 112°. ANGLE BETWEEN SHOE PIVOT & START OF FERODO = 29.5° (APP). ANGLE BETWEEN SHOE PIVOTS = 17° (APP).
  
  


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