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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).
Meeting notes on the reduction of fan pulley inertia and cylinder bore wear.

Identifier  ExFiles\Box 174\3\  img299
Date  3rd June 1941
  
Rm.{William Robotham - Chief Engineer}7/ST.3.6.41 - 5 -

24. REDUCTION OF INERTIA OF HUMBER FAN PULLEY AND HUB.

It was agreed that Rm{William Robotham - Chief Engineer}/Col. and Rm{William Robotham - Chief Engineer}/CE. would make recommendations between them for a fan pulley with reduced inertia, and that this would be produced before we ran endurance tests on the test bed.

25. CYLINDER BORE WEAR.

It was agreed that, on B.20.AW, all 6 cylinders should be chromium plated and that Nos. 1, 3 and 5 conn. rods should have the oil holes blanked off.

Rm.{William Robotham - Chief Engineer}
  
  


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