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 complete exhaust system with a resonant silencer for the Continental Type Phantom II.
| Identifier | ExFiles\Box 171\2\ img094 | |
| Date | 22th September 1932 | |
| RR 755 (10M) (30405. 21-4-32) BM. 3/6382.4. ORIGINAL COMPLETED 6.4.33. STANDARDISATION of CHASSIS PARTS. Date 22.9.32 Description of Parts. Complete Exhaust System with Resonant Silencer. Origin. To obtain a freer exhaust with consequent less heat. To overcome booms from exhaust. To reduce cost. Experimental Test Report. The resonant silencer overcomes the periods of booms both on the forward and over-run. There is considerably less back pressure. Fitted to all experimental cars with consistent results. Road Test Report. Fitted to 19-EX and ran 10,000 miles in France. With the exception of being slightly more noisier, the exhaust was free from booms, and was trouble-free throughout the test. [Stamp: PHANTOM II] (CONTINENTAL TYPE ONLY). Top Right Box: X No. 7120 No. 7230 Drawing EX. No. 6808 Part List Weight of Old Part. Cost of Old Part. £ 19. 5. 11. Weight of New Part. Cost of New Part. £ 14. 7. 5. Difference per Car. Difference per Car. £ 4.18. 6. decrease. Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen} 4.3.33. Wor.{Arthur Wormald - General Works Manager} Cost of Parts in Works which will be scrapped if commenced on :- Series...........£....... Series...........£....... Series...........£....... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 4.4.33 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 1/10/32 | Ahead BAR WOR.{Arthur Wormald - General Works Manager} | 24.9.32 | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 26.9.32 | Agreed C. RG.{Mr Rowledge} | 6.9.32 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 26.9.32 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 26.9.32 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 23.9.32 | Agreed EP{G. Eric Platford - Chief Quality Engineer} & Mx.{John H Maddocks - Chief Proving Officer} E.{Mr Elliott - Chief Engineer} | 11.10.32 | Agreed AE. PN.{Mr Northey} | 22.9.32 | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||