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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 report for replacing aluminium cylinder head tubes with nickel-coated copper tubes to prevent corrosion.

Identifier  ExFiles\Box 14\3\  Scan057
Date  24th March 1930
  
RR 755 REVISED (100) (OF.SOT. A-1-29) BM. 2/5943
[Handwritten]: X7050 COMPLETED 15.4.30.

STANDARDISATION of CHASSIS PARTS.

Description of Parts.
NICKEL COATED [Handwritten]: Copper CYLINDER HEAD TUBES.

Origin.
To overcome troubles in service.

Experimental Test Report.
The existing tubes have corroded through in a number of cases and allowes the crankcase to fill with water. The alteration is urgently required.

Road Test Report.
We have subjected various types of tube to intensive tests and find that the nickel coated copper tube is far superior to the aluminum. Run on 20-EX and 22-EX. Fitted to 20-EX 10,000 miles car.

Weight of Old Part.
Weight of New Part.
Difference per Car.

Cost of Old Part. £ - 3 0d.
Cost of New Part. £ - 3 3d. Agreed Wor.{Arthur Wormald - General Works Manager}
Difference per Car. £ - - 3d. Increase

Signature from Cost Dept. that above is correct. G/RD.10.4.30 G.11.4.30.

[Table of Initials, Dates, and Remarks]
INITIAL | DATE | REMARKS
BJ. Sg.{Arthur F. Sidgreaves - MD} | 14.4.30 | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 6.4.30 | Agreed p.p.R. - Rg.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} By.{R.W. Bailey - Chief Engineer}
WOR.{Arthur Wormald - General Works Manager} | 24.3.30 | Agreed WOR{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} | 1.4.30 | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 24.3.30 | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 25.3.30 | Agreed BY.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 29.3.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 24.3.30 | Agreed E.{Mr Elliott - Chief Engineer}
PN.{Mr Northey} | 28.3.30 | Agreed PN.{Mr Northey}
CWB. | 25.3.30 | Agreed C.
HS.{Lord Ernest Hives - Chair} | | Agreed.

[Top Right Box]
Date 24.3.30

X [checkbox] X.7250
No. 7050
Drawing No.
Part List

[Right Side Options]
A Scrap and replace at all costs, including Chassis already delivered to Customers. [This option is selected with an X]
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.

Cost of Parts in Works which will be scrapped if commenced on:-
Series..........£.......
Series..........£.......
Series..........£.......

[Green stamp across document]: PHANTOM
  
  


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