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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).
Endurance tests conducted on a wet liner engine.

Identifier  ExFiles\Box 43\3\  Scan080
Date  27th November 1926
  
EXPERIMENTAL REPORT.

K4003

B. R.{Sir Henry Royce} 403 (40 H) (RL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary}

COPIES TO: R.Cd. BJ. WOR.{Arthur Wormald - General Works Manager} By.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} EP.{G. Eric Platford - Chief Quality Engineer} PN.{Mr Northey} OY. RG.{Mr Rowledge}

Expl. No. K29122 K3000

REF. Hs{Lord Ernest Hives - Chair}/VHL/T27.11.26.

OBJECT OF TEST.
Endurance tests on wet liner engine.

TESTER.
V.{VIENNA} Halliwell.

CONDITIONS.
4th Falcon X.
High compression pistons (Y alloy E.28780).
Silchrome valves E.28651 (Strengthened tulip).
Wet liners, schemes A & B (Lec.2301) as before,
20% Benzol. "P.2" lubricating oil.

SUMMARY OF TEST.
We have completed a further 10 hours endurance run at 9/10ths. rated power. Engine was opened up to full throttle for the last five mins. and a loss of 22 C/BHP. was recorded since the commencement of the run.
At this point one of the strengthened type inlet rockers E.28756 fitted to A block previous to the run, was fractured. (Cyl.A.1.)
An inner spring on No.1 inlet valve (A side) was found fractured when an examination was made.
No internal water leaks have developed.
Oil consumption for the run = 5 pts/hour.

Hs{Lord Ernest Hives - Chair}/V.Halliwell.
  
  


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