Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 turbulent flow radiator tubes.

Identifier  ExFiles\Box 171\1\  img235
Date  18th October 1930
  
RR 78B (10H) (3-7-30) BM. 6/2571.
COMPLETED 11.3.31.
STANDARDISATION of CHASSIS PARTS.
Date 18.10.30.
X No. 7250 / 5250.
Drawing No.
Part List
Description of Parts. TURBULENT FLOW RADIATOR TUBES.
Origin. To improve 20 HP. and 40/50 HP. Radiator efficiency.
Experimental Test Report. This modification consists of putting four small bulges in the radiator tubes.
Road Test Report. A gain of 5 - 6° C. has been measured at high speeds and 1 - 3° C. at low speed full throttle
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.
Weight of Old Part.
Cost of Old Part. £
Weight of New Part.
Cost of New Part. £ Included under Sheet No. 7500 / 7260/7250.
Difference per Car. £
Cost of Parts in Works which will be scrapped if commenced on :-
Series.......£.......
Series.......£.......
Series.......£.......
Signature from Cost Dept. that above is correct. C/Rh{R. Hollingworth} 26.1.31. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 29.1.31. WOR.{Arthur Wormald - General Works Manager}
INITIAL, DATE, REMARKS
SG.{Arthur F. Sidgreaves - MD}, 30.1.31., Agreed SG.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce}, 20/10/30, Agreed RWR
WOR.{Arthur Wormald - General Works Manager}, 20.10.30, Agreed Wor.{Arthur Wormald - General Works Manager}
C., , Agreed C.
RG.{Mr Rowledge}, 20.10.30., Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design}, 21.10.30, Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer}, 20.10.30, Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer}, 21.10.30, Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer}, 21.10.30, Agreed AE.
PN.{Mr Northey}, 4.11.30, -Agreed PN.{Mr Northey}
HS.{Lord Ernest Hives - Chair}, , Agreed.
[STAMP] PHANTOM 20/25 H.P.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙