Rolls-Royce Archives
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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 proposal for new side-by-side rear brakes, similar to the 20 HP model.

Identifier  ExFiles\Box 171\1\  img143
Date  2nd May 1928
  
RR 755 REVISED (IOH) (DE.649 9-12-26) 5M. 2/1187
ORIGINAL
COMPLETED 2.7.28
STANDARDISATION of CHASSIS PARTS.
Date 2.5.28
Description of Parts. REAR BRAKES SIDE BY SIDE SIMILAR TO 20 HP.
X No. 7360
Drawing No.
Origin. To improve design.
Part List
Experimental Test Report.
The new design follows closely the scheme of the 20 HP.
There is a saving of 47 lbs. in weight.
Similar brakes will be used on future 40/50 chassis.
Road Test Report.
Run 10,000 miles on 14-EX in France.
Run 2500 miles on 12-EX.
Recommended for standardisation.
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.
PHANTOM
Weight of Old Part.
Weight of New Part.
Difference per Car. £ Wor.{Arthur Wormald - General Works Manager}
Cost of Old Part. £ Incorporated with std.
Cost of New Part. sheet X.7810/ £ 3580 - Wheels & Hubs.
Difference per Car. £ Wor.{Arthur Wormald - General Works Manager}
Cost of Parts in Works which will be scrapped if commenced on :-
Series.........£.........
Series.........£.........
Series.........£.........
Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen} 29.6.28.
INITIAL | DATE | REMARKS
BJ. | 2.7.28 | Agreed. B.Johnson.
R.{Sir Henry Royce} | 4/5/28 | Agreed RMR
WOR.{Arthur Wormald - General Works Manager} | 3.5.28 | Agreed. Wor.{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} | 3.5.28 | Agreed. RG.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 4.5.28 | agreed da{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 3.5.28 | Agreed. BY.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 3.5.28 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 4.5.28 | Agreed E
PN.{Mr Northey} | 5.6.28 | Agreed. PN.{Mr Northey}
CWB. | 10.5.28 | Agreed. CWB.
HS.{Lord Ernest Hives - Chair} | 2.5.28 | Agreed. Hs.{Lord Ernest Hives - Chair}
  
  


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