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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).
Query regarding condensation issues with Aero Engine ignition plugs on the Condor engine and 20-HP cars.

Identifier  ExFiles\Box 33\3\  Scan258
Date  24th November 1927
  
Hs.{Lord Ernest Hives - Chair}
C. Rg.{Mr Rowledge}

X/812a.
EP{G. Eric Platford - Chief Quality Engineer}11/H24.11.27.

re. AERO ENGINE IGNITION PLUGS.

The hand starting of the Condor engine in service is generally satisfactory, and the only real trouble we have experienced is the condensation of water on the ignition plugs. There seems no alternative in such cases but to take out the plugs and thoroughly dry them.

We have experienced the same trouble with our 20-HP. cars when starting up after the car has been standing in a cold, damp atmosphere.

This was the only trouble we experienced in starting the Condors in the 'Singapore'.

Is it considered some other type of plug can be used to advantage, which may be free from this trouble?

EP.{G. Eric Platford - Chief Quality Engineer}
  
  


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