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).
Blueprint graph showing braking curves for a 40/50 model car under various conditions.

Identifier  ExFiles\Box 32\2\  Scan068
Date  19th March 1925
  
BRAKING CURVES. 40/50 R.R.
ROAD SPEED M.P.H.
TIME TO REST. SECONDS
VERMOREL
A.{Mr Adams}
B.
REAR BRAKES ONLY
COEFFICIENT OF FRICTION
BETWEEN TYRE SURFACE & ROAD
.7
A.{Mr Adams} VALUES FOR A CAR IN WHICH ALL FOUR WHEELS CAN BE LOCKED.
B. VALUES FOR A CAR WITH THE REAR WHEELS LOCKED. FRONT TO REAR RATIO 40 TO 60.
ALL FIGURES FOR OPEN TOURING CAR.
WEIGHT FRONT 1.05 TONS. REAR 1.10.
19·3·25
ROLLS-ROYCE LIMITED.
PRINT ROOM
  
  


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