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 page showing lap times and quarter-mile acceleration tests under various vehicle configurations.

Identifier  ExFiles\Box 29\3\  Scan075
Date  2nd June 1920
  
contd.
-3-
2.6.20.

¼ mile flying.
Time. 23.5 secs.
Speedometer. at stop.

¼ mile from 10 M.P.H.
Time. 38 secs.
Speedometer. at stop.

Test 7. Condition - Hood and windscreen up - cut-out closed. 3.6.20.
⅛" liners under cylinders.

Lap 1.
Time. 2 m.{Mr Moon / Mr Moore} 29 sec.
Speedometer. min. 65 max. at stop

Lap 2.
Time. 2 m.{Mr Moon / Mr Moore} 29 sec.
Speedometer. min. 66 max. at stop

Lap 3.
Time. 2 m.{Mr Moon / Mr Moore} 29 sec.
Speedometer. min. 65¾ max. at stop

¼ mile flying.
Time. 26 secs.
Speedometer. at stop.

¼ mile from 10 M.P.H.
Time. 42 secs.
Speedometer. 69 M.P.H.

Test 8. Condition - Hood down - windscreen up - cut-out closed.
⅛" liners under cylinders.

Lap 1.
Time. 2 m 28 sec.
Speedometer. min. 65 max. at stop

Lap 2.
Time. 2 m.{Mr Moon / Mr Moore} 28¾ sec.
Speedometer. min. 65¾ max. at stop

Lap 3.
Time. 2 m.{Mr Moon / Mr Moore} 28 sec.
Speedometer. min. 65¾ max. at stop

¼ mile flying.
Time. 26 secs.
Speedometer. at stop.

¼ mile from 10 M.P.H.
Time. 41¾ secs.
Speedometer. 70 M.P.H.

Test 9. Condition - Hood down - windscreen down - cut-out closed.
⅛" liners under cylinders.

Contd.
  
  


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