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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).
Road test report on a car, detailing performance impressions, modifications, and feedback on various components like the engine and clutch.

Identifier  ExFiles\Box 69\3\  scan0012
Date  14th January 1925 guessed
  
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Handwritten note (top right): Can we it OK have to see them on this type of [unclear]

-2-
Handwritten note (under -2-): if moved

gauge and ammeter. At the passengers end of the instrument board there is to be a small cupboard which can be used for small tools. We understand that the Coachbuilding Dept. have a drawing of the final instrument board.

4. The ignition has the automatic oil relay advance. The only modification we anticipate is that we shall overcome the oil leak which exists on this car.

Handwritten note (left margin): Fine acceleration if spark is OK

The car is fitted with a 14-tooth axle.

The weight of the car complete without passengers is 51 1/2 cwts.

Handwritten note (left margin): Thumping rough Engine - better when ignition advanced & throttle open

We should like Sales to express their opinion on the steering and clutch as these are now the standard for 'V' series except for the pressure on the clutch pedal which we have previously mentioned.

Handwritten note (left margin): Clutch too heavy

Our impression of the car is that the engine is very free from periods on the forward drive. The period which occurred at 30 m.p.h. on the previous car (93-NK) is not noticeable on this car.

On the retard, although there is no very noticeable period, there is a roughness over a wide range of speed which appears to cause a body boom.

We have run 44-PK many thousands of miles fitted with a standard 40/50 HP. engine and we took particular note of the affect in the body after the engine was changed.

Sitting in the back of the body we could not say that there was any improvement as regards silence, or that any advantage could be noticed with the new engine except, of course, the increased power and acceleration.

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