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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 lengthened rear exhaust pipe.

Identifier  ExFiles\Box 171\1\  img251
Date  27th June 1931
  
RR 755 (10M) (8459. 24-10-30) 6/3185.
ORIGINAL
COMPLETED 8.9.31.
STANDARDISATION of CHASSIS PARTS.
Date 27.6.31.
Description of Parts. LENGTHENED REAR EXHAUST PIPE.
Origin. To carry exhaust fumes away to rear of chassis and to overcome burning of spring gaiters.
Experimental Test Report. Overcomes trouble of burning spring gaiters; carries exhaust fumes outside body or rear valance.
Road Test Report. Fitted to 25-EX. now on 10,000 miles test in France. Will be fitted to 19-G4 for similar test.
[STAMPED: PLANT CHASSIS]
X No. 7230.
Drawing No. Sch.147 Fig.2.
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...£...
Increase.
Cost per Car.
Wor.{Arthur Wormald - General Works Manager}
40/50 HP
20/25 HP
Weight of Old Part.
Cost of Old Part. £ - 3s. 5d. | - 3s. 4d.
Weight of New Part.
Cost of New Part. £ - 5s. 6d. | - 4s. 11d.
Difference per Car. £ - 2s. 1d. | - 1s. 7d.
Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen}4.9.31. | G.5.9.31.
INITIAL | DATE | REMARKS
SG.{Arthur F. Sidgreaves - MD} | 7.9.31. | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 29.6.31 | Agreed JHR
WOR.{Arthur Wormald - General Works Manager} | 25.8.31. | Agreed Wor.{Arthur Wormald - General Works Manager}
C. | 30.6.31. | Agreed C.
RG.{Mr Rowledge} | 5.7.31. | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 29.6.31. | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 29.6.31. | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 29.6.31. | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 29.6.31. | Agreed AE.
PN.{Mr Northey} | 7.9.31. | Agreed PN.{Mr Northey}
HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair}
  
  


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