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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 chassis parts, specifically a test report on India Tyres as an alternative to Dunlop tyres.

Identifier  ExFiles\Box 172\1\  img205
Date  4th March 1931
  
RR 758 (10M) (3-7-30) BM. 6/2571.
ORIGINAL
COMPLETED 25.11.31.
STANDARDISATION of CHASSIS PARTS.
Date 4.3.31.
X No. 4462.
Description of Parts: India Tyres. Super Duty 6.00 X 19. for 4 1/2 X 19. Wheel.
Drawing No.
Part List
Origin: Alternative to Dunlop.
Experimental Test Report: This tyre was tested with a view to having something that we could recommend to Customers who dislike Dunlops.
Road Test Report: Run 10,000 miles 18.G.IV. These appear to be a reasonable compromise for silence and safety. The life is as good as anything we have previously had. Pressure 5 lbs/sq.in. less than Dunlops.
Actions:
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 yet handed to test.
D Use existing stock. Alteration effective on future Chassis. (Ticked)
[Stamped Text: 20/25 H.P. CHASSIS]
Weight of Old Part.
Cost of Old Part. £ 10. 1. 8d.
Weight of New Part.
Cost of New Part. £ 12. 15. 0d.
Difference per Car.
Difference per Car. £ 2. 13. 4d. Increase:
Cost of Parts in Works which will be scrapped if commenced on :-
Series.........f.........
Series.........f.........
Series.........f.........
Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen}13.11.31. G.13.11.31. Wor.{Arthur Wormald - General Works Manager}
APPROVALS:
INITIAL | DATE | REMARKS
SG.{Arthur F. Sidgreaves - MD} | 16.11.31. | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 12/4/31 | Agreed SHR
WOR.{Arthur Wormald - General Works Manager} | 16.3.31. | Agreed Wor.{Arthur Wormald - General Works Manager}
C. | 11.3.31. | Agreed C. (As asked for).
RG.{Mr Rowledge} | 7.3.31. | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 7.3.31. | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 9.3.31. | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 6.3.31. | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 9.3.31. | Agreed AE.
PN.{Mr Northey} | |
HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair}
  
  


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