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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).
Comparison of vehicle components and weight against a Chrysler model, detailing spring, axle, electrical, and body differences.

Identifier  WestWitteringFiles\U\January1930-April1930\  Scan064
Date  24th January 1930 guessed
  
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a lighter form of spring anchorage, but even allowing for
these items they save something on the axle casing. We are
testing to see if the latter will stand up to our full torque
dynamometer test.

The rear spring weights are interesting but the deflec-
tions are not the same as ours. If they stand up to the bump-
ing test we ought to be able to save something on our own
rear springs, since these have never given any trouble and
we have recently improved their manufacture so tremendously.
There are a few items where we can say that our weights are
comparatively high. These items are marked + in the following
weight analysis.

We add weight by fitting refinements whose usefulness
is worthy of the extra weight, these items are marked =. Our
electrical system is 12 volt as against the Chrysler's six,
hence the additional weight.

Our shock absorbers are very much in advance of theirs
and well worth the additional weight. Luggage grid, side
spare wheel carrier, centralised chassis lubrication and
mechanical servo operated brakes are refinements which do
not appear on the Chrysler.

The extra weight of our spare wheel and carrier is due
to the Chrysler using a detachable rim and not detachable
wheels.

The body weight comparison is scarcely fair as the
Chrysler is a steel body and 17-G4 is fitted with a fabric
Weyman body by Park Ward. It is extremely doubtful if one
of our coachwork bodies giving the same accommodation would
be as light as the Chrysler.
  
  


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