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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 document for a stay to prevent exhaust pipe vibration.

Identifier  ExFiles\Box 48\4\  Scan206
Date  15th April 1924
  
RR 75S (10M) (SL391 2-11-23) MP 281297
STANDARDISATION of CHASSIS PARTS.
COMPLETED 22.5.24.
Date 15.4.24.
X No. 4238

Description of Parts: STAY FOR EXHAUST PIPE. HS {Lord Ernest Hives - Chair}
Origin: To prevent pipe vibrating.

Experimental Test Report:
At low engine speeds with the engine running light, we sometimes get a vibration caused by the exhaust pipe vibrating from the manifold to the silencer.
The proposed stay overcomes this.

Road Test Report:
Fitted to 4-C-11 - run 3800 miles.
Fitted to 6-C-11 - run 6700 miles.
No trouble.

Weight of Old Part: £ s d
Weight of New Part: £ s d
Difference per Car: £ s d

Cost of Old Part: £ s d
Cost of New Part: £ 1s 7d
Difference per Car: £ 1s 7d increase.

Signature of Mr. De LOOZE that above is correct: LW/Rms. 26.4.24.

SIGNATURES:
MR. JOHNSON, DATE: 22.5.24, REMARKS: Agreed. C.Johnson.
MR. B. JOHNSON, DATE: 22.5.24, REMARKS: Agreed. B.J.
MR. ROYCE, DATE: 27.4.24, REMARKS: Agreed. FHR.
MR. WORMALD, DATE: 6.5.24, REMARKS: Agreed. Wor. {Arthur Wormald - General Works Manager}
MR. ROWLEDGE, DATE: Apl 16th, REMARKS: Agreed Ry.
MR. DAY, DATE: 29.4.24, REMARKS: Agreed. Da. {Bernard Day - Chassis Design}
MR. BAILEY, DATE: 17.4.24, REMARKS: Agreed. BY. {R.W. Bailey - Chief Engineer}
MR. PLATFORD, DATE: 17.4.24, REMARKS: Agreed. EP. {G. Eric Platford - Chief Quality Engineer} Consideration should be given to apply retrospectively in case complaint.
MR. ELLIOTT, DATE: 10.5.24, REMARKS: Agreed, E. {Mr Elliott - Chief Engineer}
MR. NORTHEY, DATE: 16.4.24, REMARKS: Agreed, PN. {Mr Northey}
MR. HIVES, DATE: 21.5.24, REMARKS: Agreed. E.Hives.

Right hand column:
Drawing No.
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

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

(Stamped over the central part of the document: CHASSIS)
  
  


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