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).
Graph and table detailing vehicle acceleration performance figures at Brooklands.

Identifier  ExFiles\Box 97\3\  scan0182
Date  27th June 1939
  
M.P.H
SECONDS
M.P.H TO M.P.H IN SECS
10 - 20 | 4.2
10 - 30 | 8.4
10 - 40 | 12.6
10 - 50 | 16.8
10 - 60 | 21.2
10 - 70 | 26.3
10 - 80 | 32.7
14 B.V. DIRECT GEAR PERFORMANCE
ACCELERATION FIGURES AT BROOKLANDS
ENGINE UNIT W.H. Nọ 10
AXLE RATIO 12:41
TYRES - AVON LIGHT TREAD
@ 40 lb/in² FRONT
45 lb/in² REAR
TWIN EXHAUST SYSTEM
TIME FOR STANDING ¼ MILE THROUGH THE GEARS - 19.8 SECS
RM{William Robotham - Chief Engineer}/TAS{T. Allan Swinden}/27·6·39
  
  


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