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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).
Carburettor and induction pipe designs and placement for the Falcon 10 engine.

Identifier  ExFiles\Box 42\3\  Scan009
Date  7th June 1926
  
To RG.{Mr Rowledge} from R.{Sir Henry Royce}

X3841

R1/M.{Mr Moon / Mr Moore} 7.6.26.

C. to - BJ.
" - Wor.{Arthur Wormald - General Works Manager}
" - HS.{Lord Ernest Hives - Chair}
" BY.{R.W. Bailey - Chief Engineer}

FALCON 10. CARBURETTERS AND INDUCTION PIPES

X3933 [crossed out]
- X.3874. [crossed out]
X3841

The advantage of still having the engine tested with the carburettors in the Vee will be that we shall have a comparative test in both power and petrol consumption between this and the carburettors at the rear. We can then offer either pattern or that which proves the better.

It would appear that Claudels would like to revise both the vertical carburettor for the blower and also the horizontal one for the rear of the engine. There seems so much in common with these three carburettors that it would save time if they produced all three designs.

If however you fear delay it would be wise to be working on a design ourselves for the rear of the engine.

For the carburetter in the Vee the air intake looks considerably too large. E.{Mr Elliott - Chief Engineer} estimates there is only a speed of 58 ft. per sec. so that these might be reduced to half their present area, and give a more efficient shape - i.e. circular for less weight.

R.{Sir Henry Royce}
  
  


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