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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).
Standardisation of a light type flywheel and clutch with a serrated drive and larger clutch stop.

Identifier  ExFiles\Box 171\1\  img147
Date  24th March 1928
  
RR 755 REVISED (10H) (D.C. 777-29-2-28) Mᵞ C. Lᵀ
ORIGINAL COMPLETED 19.7.28
STANDARDISATION of CHASSIS PARTS.
Date 24.3.28
Description of Parts: FLYWHEEL & CLUTCH, LIGHT TYPE SERRATED DRIVE, LARGER CLUTCH STOP.
Drawing No.: X No. 7300
Origin: E-1-C To simplify the design and for lightness.
Experimental Test Report: Fitted to 15-EX and run 10,000 miles in France.
Road Test Report: This was run 10,000 miles in France and gave no trouble. The larger clutch stop was an improvement, no trouble with clutch not stopping.
Part List:
A Scrap and replace at all costs, including Chassis already delivered to Customers.
B Scrap and replace on Chassis in Works.
C Scrap present stock and replace on all Chassis not yet handed to test.
D Use existing stock Alteration effective on future Chassis.
Weight of Old Part:
Cost of Old Part: £ 33. 9. 8d.
Weight of New Part:
Cost of New Part: £ 32. 7. 6
Difference per Car:
Difference per Car: £ 1. 2. 2d. decrease.
Signature from Cost Dept. that above is correct: G/Rb.{R. Bowen} 17.7.28.
Cost of Parts in Works which will be scrapped if commenced on :-
Series.........£.........
Series.........£.........
Series.........£.........
INITIAL | DATE | REMARKS
BJ. | 18.7.28 | Agreed. B.J.
R.{Sir Henry Royce} | 29/3/28 | Agreed. JMR
WOR.{Arthur Wormald - General Works Manager} | 27.3.28 | Agreed. Wor.{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} | 26.3.28 | Agreed. RG.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 4.4.28 | Agreed, but presume causing the slight wear will be investigated. DA.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 28.3.28 | Agreed. BY.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 27.3.28 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 28.3.28 | Agreed. E.{Mr Elliott - Chief Engineer}
PN.{Mr Northey} | 10.5.28 | Agreed. PN.{Mr Northey}
CWB. | 4.4.28 | Agreed. CWB. At its best this is excellent but it appears to be somewhat variable in action and much less efficient when everything is hot. It is a great improvement on present pattern. CWB.
Hs.{Lord Ernest Hives - Chair} | 24.3.28 | Agreed. Hs.{Lord Ernest Hives - Chair}
  
  


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