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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).
The road and dyno test procedures for a new gearbox and rear axle.

Identifier  ExFiles\Box 148\2\  scan0047
Date  19th November 1938 guessed
  
Testing of New Parts
(Transmission)

A Gearbox

Road
50000 miles including 15000 in France

Dyno
. At 2000 engine rpm

followed by
100 hours 3RD or overdrive full throttle
30 " 2nd "
8 " 1ST 2nd speed lift
1 " 1ST full throttle
1 " 1ST full throttle
(These tests performed with:) } using EP{G. Eric Platford - Chief Quality Engineer} lubricant - asmoil } 90°C

B Rear Axle

Road
50000 miles including 15000 in France

Dyno
At 2000 engine rpm

30 hours on 3rd full throttle } EP{G. Eric Platford - Chief Quality Engineer} oil at 90°C
followed by 70 hours on Top "
and 30 hours on 1ST " " EP{G. Eric Platford - Chief Quality Engineer} oil at 90°C *

* This is a separate additional test run on new fears but all other parts unchanged. This is now being done by using a larger engine
  
  


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