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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 performance of air conditioning, engine, and electrical systems after a test.

Identifier  ExFiles\Box 26\1\  Scan031
Date  4th May 1965
  
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Air Conditioning

I think the "comfort control" is built for the standard American and needs a different behaviour for British taste. I set the control at 65°F automatic and, as a consequence I imagine, got the fridge working hard and the engine always on fast idle. An American would have chosen 70° or 75°, which would (for the same ambient temperature) have kept the fridge effort down and the engine on normal idle. Perhaps a variable shunt to the ambient thermistor could change behaviour to suit the customer.

With my settings the mode changed from "up the screen" to "Gale through the facia outlets" at 6 miles from a cold start. The gale seemed excessive, and showed no signs of moderating, and eventually I throttled the outlets. I would have preferred to reduce the blower speed.

After 60 miles of these conditions I (the only occupant) had a fairly severe headache, which I got rid of by driving with both front windows slightly open. The air conditioner would be drying already fairly dry air, and I wonder whether lack of humidity caused the headache.

Engine

The engine was quite unobtrusive except that, following cold starts, more often than not it stopped when a gear was engaged.

Electrical

There are two safety features we should copy.

1. The direction indicators give instant warning. Our flashers still start with a "dark" half period.

2. The driver can take sole charge of windowlift switching. Also, when ignition is switched off, windows cannot be moved except by emergency control.

Tln.
  
  


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