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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).
Experiment to fit a heavier flywheel to a Spectre car to resolve gearbox issues.

Identifier  ExFiles\Box 93\3\  scan0044
Date  21th May 1935
  
To RHC.{R. H. Coverley - Production Engineer}

+312

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}1/KW.21.5.35.

SpectreCodename for Phantom III Clutch.

We want to try a heavier flywheel in a SpectreCodename for Phantom III car as we think it will help to eliminate the crankshaft period and also reduce chunking in the gearbox.

We send you herewith Hs.{Lord Ernest Hives - Chair}1975 showing how to add sufficient inertia for an experiment. Unfortunately the part added to the flywheel only amounts to 1/4 of the total. The extra ring is therefore necessary. This latter means making a new clutch pit.

The shape of the flywheel is in accordance with the plasticene model you made for us. You will notice we suggest making the flywheel a steel forging instead of having a separate starter ring.

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}
  
  


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