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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).
Summary of two development tests carried out on a 114° camshaft.

Identifier  ExFiles\Box 13\2\  02-page158
Date  7th January 1941
  
X7090
FROM HS{Lord Ernest Hives - Chair}/Sn.{Mr Sanderson}
c. to Mr. WPr.
c. to Mr. H.{Arthur M. Hanbury - Head Complaints} Da.{Bernard Day - Chassis Design}
c. to SY.

HS{Lord Ernest Hives - Chair}/Sn.{Mr Sanderson}2414.7.1.41.

PII
DEVELOPMENT WORK 114° CAMSHAFT.

We carried out two tests on this Camshaft.

(1) R.M.P.37. This test was to determine whether any advantage would be gained from a shorter duration exhaust cam. The results shew that there is nothing to be gained by shortening the duration of the exhaust cam on R.32448, the P.V. 114° shaft.

(2) R.M.P.38. This shews that we can expect to gain nothing further on this shaft by increasing the valve lift with the existing size of valves.

HS{Lord Ernest Hives - Chair}/Sn.{Mr Sanderson}

R.M.P.37. and R.M.P.38 attached:
  
  


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