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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).
40/50 HP gearbox test, noting issues with gears working themselves out.

Identifier  ExFiles\Box 6\4\  04-page083
Date  28th February 1925
  
EXPERIMENTAL REPORT

To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair}
c. to CJ. BJ.
c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer}
c. to DA.{Bernard Day - Chassis Design} EY.
c. to Sor.

Expl. No. 45310
REF. Hs{Lord Ernest Hives - Chair}5/LG28.2.25.

S E C R E T.
'INDIA' - GEARBOX. X.5310

In connection with these experiments, we have carried out a test on a 40/50 HP. on the 1st. and 2nd. speeds which are similar in design to those on the 'India' 4-speed gearbox.

We found that on the car we tried, if the lever was free from the notches in the gate, the 1st. speed gear would work out. It required an effort of 10 lbs. on the end of the change speed lever to prevent it from doing so.

There was also a slight tendency for the 2nd. speed to work out. It would work half way out; a slight pressure on the end of the change speed lever would prevent this occurring.

Hs.{Lord Ernest Hives - Chair}
  
  


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