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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).
Brake test results for chassis 25-EX, detailing setup, stopping distances, and mileage over several days.

Identifier  ExFiles\Box 13\1\  01-page03
Date  21th January 1932
  
H/S
BRAKE TESTS. 25-EX. 21. 1. 32.

Chassis received from fitters.
Milleniun. Cast. Iron Ribbed Drums.
Fitted front and back.
Servo Cams. 35º

Foot Pedal 5¼"
Front Toggles OS ⅞ NS{Norman Scott} ⅞"
Rear Arms. OS ⅝ NS{Norman Scott} ⅝"

Light running 59 miles.

22. 1. 32.
Stopping Distance.

30 M.P.H. 20 ft.
70 " 210 ft.
60 " 130 ft.
50 " 98 ft.
40 " 48 ft.
30 " 15 ft.

Light running. 156 miles.

23. 1. 32.
Foot Pedal.
Front Toggles. OS 1.1/16 NS{Norman Scott} ⅞"
Rear Arms. OS ¾" NS{Norman Scott} ¾".
  
  


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