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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).
Progress of fitting experimental modified exhaust manifolds to a Phantom I engine and another vehicle.

Identifier  ExFiles\Box 27a\1\  Scan014
Date  6th October 1931
  
Sèvres/Hs{Lord Ernest Hives - Chair}/LID{A. J. Lidsey}
X4013.
Hm{Capt. W. Hallam - Head Repairs}/VAI6/GM.6.IO.3I
X5330
X5320

re: Experimental modified exhaust manifolds

With reference to your memo Hs{Lord Ernest Hives - Chair}/LIDI/MJ.2.IO.3I the position is this:

I°. We are at present overhauling a Phantom I engine to which we shall fit two of the above manifolds, this car has given trouble in the past owing to failures of the exhaust manifolds this car does excessive mileage and we shall complete same on about the I3th.inst.

2°. We have arranged for Mr. Dubonnet's car 7-AL to be sent to us to have two manifolds fitted we are expecting this car at any time, (therefore up to the time of writing.)

We have not had an opportunity of fitting any of these manifolds on cars which we know to do a considerable amount of running, also cars which we can control.

Hm{Capt. W. Hallam - Head Repairs}/VA.
VA.
  
  


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