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).
Performance test results for chassis 939 at Brooklands, detailing lap and speed times.

Identifier  ExFiles\Box 29\3\  Scan002
Date  6th May 1909
  
R.R. 148 (20 H) (H.{Arthur M. Hanbury - Head Complaints} 360. 16.9.09) E.P. 4941.
X1788 4200(struck through) F700(struck through)
Tests made on Chassis 939 on Brooklands by Hives in company with the Club Engineer 5 & 6/5/09.
Chassis loaded up to weigh 2 Tons with driver & passenger.
Fitted with 2 Seater Test Body with Hood
No wind screen. Mudguards fitted. (Test type).
Windage area = 22.7 sq. ft. approx:

Times.
Lap min sec.: 2.54
1/2 mile fast: 31 sec, 29 1/5", 28
1/2 mile slow: 8' 25", 9' 15", 9' 2"
(all 3rd gear)

Fastest Times 2.54 28 secs.

(OVER)
  
  


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