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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 of a radiator with integral vertical shutters for the 20 HP chassis.

Identifier  ExFiles\Box 172\1\  img117
Date  23th May 1927
  
RR 75S REVISED (10H) (DE 649 9-12-26) BM. 2/1157.
ORIGINAL COMPLETED 1.9.27
STANDARDISATION of CHASSIS PARTS.

Description of Parts: RADIATOR WITH INTEGRAL VERTICAL SHUTTERS.
Origin: To bring design in line with approved Phantom shutters.

Experimental Test Report: Shutters are of good appearance, definite control, fitted to 10-G-111 and run 10,000 miles in France.

Road Test Report: The shutters worked satisfactorily during the test. A slight binding in the control caused the starter carburetter to be opened when operating shutters otherwise the controls are satisfactory.

Drawing No. N. Sch 2314, No. 2320, 2355
Part E.{Mr Elliott - Chief Engineer} 54230
List E.{Mr Elliott - Chief Engineer} 54240
Action Selected: C - Scrap present stock and replace on all Chassis not yet handed to test.

Weight of Old Part:
Cost of Old Part: £ 35. 18. 9
Weight of New Part:
Cost of New Part: £ 38. 19. 9
Difference per Car: £ 3. 1. 0 increase.
Signature from Cost Dept. that above is correct: My/Rb.{R. Bowen} 30.6.27.

Approvals:
INITIAL: B.J., DATE: 1.9.27, REMARKS: Agreed. B.J.
INITIAL: R.{Sir Henry Royce}, DATE: 25/5/27, REMARKS: Agreed FHR
INITIAL: WOR.{Arthur Wormald - General Works Manager}, DATE: 23.5.27, REMARKS: Agreed. Wor.{Arthur Wormald - General Works Manager}
INITIAL: RG.{Mr Rowledge}, DATE: 30.5.27, REMARKS: Agreed. Rg.{Mr Rowledge}
INITIAL: DA.{Bernard Day - Chassis Design}, DATE: 26.5.27, REMARKS: Agreed. DA.{Bernard Day - Chassis Design} The control pieces are the same as Phantom. Sticking might be eliminated by returning to the bush stopped from turning at the dashboard end as was originally instructed & is used on the Phantom.
INITIAL: BY.{R.W. Bailey - Chief Engineer}, DATE: 25.5.27, REMARKS: Agreed. BY.{R.W. Bailey - Chief Engineer}
INITIAL: EP.{G. Eric Platford - Chief Quality Engineer}, DATE: 24.5.27, REMARKS: Agreed. Except coachbuilders request circular fitts: for this control (and switchbox) to match other instrument board fittings. EP.{G. Eric Platford - Chief Quality Engineer}
INITIAL: E.{Mr Elliott - Chief Engineer}, DATE: 25/5/27, REMARKS: Agreed CE
INITIAL: CWB., DATE: 27.5.27, REMARKS: Agreed. CWB.
INITIAL: HS.{Lord Ernest Hives - Chair}, DATE: 23.5.27, REMARKS: Agreed. Hs.{Lord Ernest Hives - Chair}

Stamp: 20 H.P. CHASSIS
  
  


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