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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).
Modification to a 20/25 flywheel for the Bensport model to reduce inertia.

Identifier  ExFiles\Box 85\2\  scan0008
Date  8th February 1933
  
X 212-

RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}11/KT. 8.2.33.

BENSPORT FLYWHEEL.

We send you herewith a modification to the std 20/25 flywheel G.54938. to reduce the inertia. The present inertia we find too much for Bensport, spoiling the acceleration on the indirect gears.

If you will let us know when this flywheel is ready we will try it on either 19.G.IV. or 18.G.IV. in conjunction with the damped spring drive.

Shorter studs are required to hold the cover plate.

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


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