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 an air silencer by changing from aluminium to steel to reduce cost.
| Identifier | ExFiles\Box 85\4\ scan0173 | |
| Date | 16th November 1936 | |
| RR 755B (10H) 88620 12-8-35 W.H.K. 21800 COMPLETED 30.11.36. BENTLEY STANDARDISATION of PARTS. Date: 5.10.36 (Handwritten amendment: 16.11.36) No. 208. Drawing No. Description of Parts: AIR SILENCER IN 28 S.W.G. PLANISH STEEL INSTEAD OF 20 S.W.G. ALUMINIUM. Origin: To reduce cost. Report of Experimental Test: Ran 10,000 miles on B-56-BN{W.O. Bentley / Mr Barrington} in France satisfactorily. The air filter element ran 15,000 miles on 22-G-V in France satisfactorily. See Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}14/KW.27.3.36. COSTS: MATERIAL: Cost of Old Part £- s.17 d.3, Cost of New Part £- s.11 d.0 LABOUR: Labour cost unaffected. TOTAL: Old Part £- s.17 d.3, New Part £- s.11 d.0 Nett Decrease: £- s.6 d.3 Signature from Cost Dept. that above is correct: GRl 3.11.36. APPROVALS: INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 27-11-36. | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} (Handwritten: Hs{Lord Ernest Hives - Chair}) | | Agreed Hs.{Lord Ernest Hives - Chair} C. | 18.11.36. | Agreed C. E.{Mr Elliott - Chief Engineer} | 17.11.36. | Agreed E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} | 25.11.36. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 17.11.36. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 17.11.36. | Agreed, see 25/30 comments EP.{G. Eric Platford - Chief Quality Engineer} SFT.{Mr Swift} | 18.11.36. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 16.11.36. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} (Handwritten: Rm{William Robotham - Chief Engineer}) | 16.11.36. | Agreed Rm.{William Robotham - Chief Engineer} ADDITIONAL NOTES: Handwritten in left margin: 15/- Stamp: 27 NOV 1936 with 'J.S.' handwritten on it. | ||